CVE-2022-25273
📋 TL;DR
This vulnerability in Drupal's form API allows attackers to bypass input validation on certain contributed or custom module forms. Attackers could inject disallowed values or overwrite data, potentially altering sensitive information. Drupal sites using vulnerable custom or contributed modules are affected.
💻 Affected Systems
- Drupal Core
📦 What is this software?
Drupal by Drupal
Drupal by Drupal
⚠️ Risk & Real-World Impact
Worst Case
Critical data corruption or unauthorized modification of sensitive information like user permissions, configuration settings, or content data.
Likely Case
Limited data manipulation on specific forms where vulnerable modules are installed, potentially affecting form submissions or stored values.
If Mitigated
No impact if vulnerable modules are not installed or proper input validation is already implemented at application layer.
🎯 Exploit Status
Exploitation requires knowledge of vulnerable custom/contributed modules and their form implementations.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Drupal 9.3.13, 9.4.3, or 10.0.2
Vendor Advisory: https://www.drupal.org/sa-core-2022-008
Restart Required: No
Instructions:
1. Update Drupal core to patched version via Composer: composer update drupal/core-recommended --with-dependencies
2. Run database updates: drush updatedb
3. Clear caches: drush cache:rebuild
🔧 Temporary Workarounds
Disable vulnerable modules
allIdentify and disable any contributed or custom modules with vulnerable form implementations
drush pm:list --status=enabled --type=module
drush pm:uninstall MODULE_NAME
🧯 If You Can't Patch
- Implement additional input validation in custom/contributed module forms
- Restrict access to vulnerable forms using Drupal's permission system
🔍 How to Verify
Check if Vulnerable:
Check Drupal version: drush status | grep 'Drupal version'Check Version:
drush status | grep 'Drupal version'Verify Fix Applied:
Verify version is 9.3.13, 9.4.3, or 10.0.2 or higher📡 Detection & Monitoring
Log Indicators:
- Unusual form submissions with unexpected parameter values
- Failed validation attempts on custom forms
Network Indicators:
- POST requests to Drupal forms with unexpected parameters
SIEM Query:
web_requests WHERE url_path CONTAINS '/form/' AND parameters CONTAINS unexpected values