CVE-2025-3057
📋 TL;DR
This Cross-Site Scripting (XSS) vulnerability in Drupal core allows attackers to inject malicious scripts into web pages viewed by other users. It affects Drupal installations running vulnerable versions, potentially compromising user sessions and data. All Drupal sites using affected versions are at risk unless patched.
💻 Affected Systems
- Drupal core
📦 What is this software?
Drupal by Drupal
Drupal by Drupal
Drupal by Drupal
Drupal by Drupal
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, take over administrative accounts, deface websites, or redirect users to malicious sites, potentially leading to complete site compromise.
Likely Case
Attackers steal user session cookies, perform actions on behalf of authenticated users, or deface public-facing content.
If Mitigated
With proper input validation and output encoding in custom modules, impact is limited to specific vulnerable components only.
🎯 Exploit Status
Exploitation requires user interaction or authenticated access. The vulnerability is in input handling during web page generation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.3.13, 10.4.3, 11.0.12, 11.1.3
Vendor Advisory: https://www.drupal.org/sa-core-2025-001
Restart Required: No
Instructions:
1. Backup your Drupal site and database. 2. Update Drupal core using Composer: 'composer update drupal/core-recommended --with-dependencies'. 3. Clear all caches: 'drush cr' or via admin interface. 4. Verify update completed successfully.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation and output encoding in custom modules and themes
Implement Drupal's Form API validation
Use Html::escape() or check_plain() for output
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) with XSS protection rules
- Restrict user input fields and implement content security policy (CSP) headers
🔍 How to Verify
Check if Vulnerable:
Check Drupal version at /admin/reports/status or via 'drush status' commandCheck Version:
drush status | grep 'Drupal version' or check /admin/reports/statusVerify Fix Applied:
Verify version is 10.3.13+, 10.4.3+, 11.0.12+, or 11.1.3+📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests with script tags
- Multiple failed input validation attempts
- Unexpected content modifications
Network Indicators:
- HTTP requests containing script injection patterns
- Unusual outbound connections after form submissions
SIEM Query:
web.logs: (*.js OR javascript: OR <script*) AND status:200 AND uri.path:/node/*