CVE-2025-13981
📋 TL;DR
This Cross-Site Scripting (XSS) vulnerability in Drupal AI modules allows attackers to inject malicious scripts into web pages viewed by other users. It affects Drupal sites using AI modules in vulnerable versions. Attackers could steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- Drupal AI (Artificial Intelligence) module
📦 What is this software?
Artificial Intelligence by Artificial Intelligence Project
Artificial Intelligence by Artificial Intelligence Project
Artificial Intelligence by Artificial Intelligence Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator session cookies, gain full control of the Drupal site, install backdoors, or deface the website.
Likely Case
Attackers steal user session cookies, perform actions as authenticated users, or redirect users to malicious sites.
If Mitigated
With proper Content Security Policy (CSP) headers and input validation, impact is limited to script execution within the vulnerable component's context.
🎯 Exploit Status
XSS vulnerabilities typically have low exploitation complexity, but specific exploit details are not publicly documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.7, 1.1.7, or 1.2.4
Vendor Advisory: https://www.drupal.org/sa-contrib-2025-119
Restart Required: No
Instructions:
1. Backup your Drupal site. 2. Update the AI module via Drupal's update manager or Composer. 3. Clear Drupal caches. 4. Verify the update was successful.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or configure in web server settings
Disable AI Module
linuxTemporarily disable the vulnerable module until patched
drush pm-disable ai
Or disable via Drupal admin interface
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Enable Drupal's built-in XSS protection features and input validation
🔍 How to Verify
Check if Vulnerable:
Check Drupal's module status page or use: drush pm-list --status=enabled --fields=name,version | grep aiCheck Version:
drush pm-list --status=enabled --fields=name,version | grep aiVerify Fix Applied:
Verify module version shows 1.0.7, 1.1.7, or 1.2.4 or higher📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests with script tags to AI module endpoints
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing <script> tags to AI module paths
- Unexpected redirects from AI module pages
SIEM Query:
web_requests WHERE url CONTAINS '/ai/' AND (body CONTAINS '<script>' OR body CONTAINS 'javascript:')