CVE-2025-31683
📋 TL;DR
This CSRF vulnerability in Drupal Google Tag allows attackers to trick authenticated administrators into performing unauthorized actions, such as modifying Google Tag configuration. It affects Drupal sites using Google Tag module versions 0.0.0-1.7.x and 2.0.0-2.0.7.
💻 Affected Systems
- Drupal Google Tag module
📦 What is this software?
Google Tag by Google Tag Project
Google Tag by Google Tag Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify Google Tag configuration to inject malicious scripts, potentially leading to data theft, session hijacking, or further site compromise.
Likely Case
Unauthorized changes to Google Tag settings, potentially disrupting analytics tracking or injecting unwanted scripts.
If Mitigated
Limited impact if CSRF protections are implemented at application or network level.
🎯 Exploit Status
Exploitation requires tricking authenticated administrators into visiting malicious pages while logged in.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.8.0 for Drupal 7, 2.0.8 for Drupal 8/9/10
Vendor Advisory: https://www.drupal.org/sa-contrib-2025-012
Restart Required: No
Instructions:
1. Update Google Tag module to version 1.8.0 (Drupal 7) or 2.0.8 (Drupal 8/9/10). 2. Clear Drupal caches. 3. Verify configuration remains intact.
🔧 Temporary Workarounds
Implement CSRF tokens manually
allAdd CSRF protection to Google Tag configuration forms
Requires custom code modification - not recommended for non-developers
Restrict admin access
allLimit administrator access to trusted networks only
Configure firewall rules to restrict admin interface access
🧯 If You Can't Patch
- Implement web application firewall with CSRF protection rules
- Require administrators to use separate browser profiles for admin tasks
🔍 How to Verify
Check if Vulnerable:
Check Google Tag module version in Drupal admin at /admin/modules or via drush: drush pm-list | grep google_tagCheck Version:
drush pm-list --fields=name,version --format=json | grep google_tagVerify Fix Applied:
Confirm module version is 1.8.0+ (D7) or 2.0.8+ (D8/9/10) and test configuration form CSRF protection📡 Detection & Monitoring
Log Indicators:
- Unexpected Google Tag configuration changes from unusual IPs
- Multiple failed CSRF token validations
Network Indicators:
- POST requests to Google Tag configuration endpoints without referrer headers
- Admin interface access from unexpected sources
SIEM Query:
source="drupal" AND (uri_path="/admin/config/services/google_tag" OR module="google_tag") AND status="403"