CVE-2025-31689
📋 TL;DR
This CSRF vulnerability in Drupal's GDPR module allows attackers to trick authenticated users into performing unintended actions without their consent. It affects Drupal sites using the GDPR module with versions from 0.0.0 before 3.0.1 and from 3.1.0 before 3.1.2.
💻 Affected Systems
- Drupal GDPR (General Data Protection Regulation) module
📦 What is this software?
General Data Protection Regulation by General Data Protection Regulation Project
View all CVEs affecting General Data Protection Regulation →
General Data Protection Regulation by General Data Protection Regulation Project
View all CVEs affecting General Data Protection Regulation →
⚠️ Risk & Real-World Impact
Worst Case
Attackers could manipulate GDPR settings, disable compliance features, or modify user consent configurations, potentially violating data protection regulations.
Likely Case
Attackers could change GDPR-related settings, affecting how user data is handled and consent is managed on the site.
If Mitigated
With proper CSRF protections and user awareness, impact is limited to unsuccessful exploitation attempts.
🎯 Exploit Status
Requires tricking authenticated users into visiting malicious pages while logged into Drupal.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.1 or 3.1.2
Vendor Advisory: https://www.drupal.org/sa-contrib-2025-018
Restart Required: No
Instructions:
1. Update the GDPR module to version 3.0.1 (for 3.0.x branch) or 3.1.2 (for 3.1.x branch). 2. Clear Drupal caches after update. 3. Verify module functionality post-update.
🔧 Temporary Workarounds
CSRF Token Validation
allImplement custom CSRF token validation for GDPR module forms
Module Disable
allTemporarily disable the GDPR module if not critically needed
drush pm-disable gdpr
🧯 If You Can't Patch
- Implement additional CSRF protection at web application firewall level
- Educate users about phishing risks and safe browsing practices
🔍 How to Verify
Check if Vulnerable:
Check GDPR module version in Drupal admin interface or via drush: drush pm-list | grep gdprCheck Version:
drush pm-list --fields=name,version | grep gdprVerify Fix Applied:
Confirm GDPR module version is 3.0.1 or higher (3.0.x branch) or 3.1.2 or higher (3.1.x branch)📡 Detection & Monitoring
Log Indicators:
- Unexpected GDPR configuration changes
- Multiple failed CSRF token validations for GDPR endpoints
Network Indicators:
- HTTP POST requests to GDPR endpoints without referrer headers
- Cross-origin requests to GDPR forms
SIEM Query:
source="drupal.log" AND ("CSRF token" OR "access denied") AND "gdpr"