Project:
Date:
2021-April-21
Vulnerability:
Cross-site scripting
Description:
Drupal core's sanitization API fails to properly filter cross-site scripting under certain circumstances.
Not all sites and users are affected, but configuration changes to prevent the exploit might be impractical and will vary between sites. Therefore, we recommend all sites update to this release as soon as possible.
Solution:
Install the latest version:
- If you are using Drupal 9.1, update to Drupal 9.1.7.
- If you are using Drupal 9.0, update to Drupal 9.0.12.
- If you are using Drupal 8.9, update to Drupal 8.9.14.
- If you are using Drupal 7, update to Drupal 7.80.
Versions of Drupal 8 prior to 8.9.x are end-of-life and do not receive security coverage.
Reported By:
Fixed By:
- Alex Pott of the Drupal Security Team
- Jasper Mattsson
- Michael Hess of the Drupal Security Team
- Wim Leers
- Heine of the Drupal Security Team
- Peter Wolanin of the Drupal Security Team
- Jess (xjm) of the Drupal Security Team
- Samuel Mortenson of the Drupal Security Team
- nwellnhof
- Alex Bronstein of the Drupal Security Team
- Lee Rowlands of the Drupal Security Team
- Adam G-H
- Drew Webber of the Drupal Security Team