Drupal

Project: Drupal coreDate: 2021-May-26Security risk: Moderately critical 14∕25 AC:Basic/A:User/CI:Some/II:Some/E:Proof/TD:DefaultVulnerability: Cross Site ScriptingCVE IDs: CVE-2021-33829Description: 

Update: 2021-06-11: Added CVE-2021-33829 identifier

Drupal core uses the third-party CKEditor library. This library has an error in parsing HTML that could lead to an XSS attack. CKEditor 4.16.1 and later include the fix.

Update: 2021-06-11: More details are available on CKEditor's blog.

Users of the CKEditor library via means other than Drupal core should update their 3rd party code (e.g. the WYSIWYG module for Drupal 7). The Drupal Security Team policy is not to alert for issues affecting 3rd party libraries unless those are shipped with Drupal core. See DRUPAL-SA-PSA-2016-004 for more details.

This issue is mitigated by the fact that it only affects sites with CKEditor enabled.

Solution: 

Install the latest version:

• If you are using Drupal 9.1, update to Drupal 9.1.9.
• If you are using Drupal 9.0, update to Drupal 9.0.14.
• If you are using Drupal 8.9, update to Drupal 8.9.16.

Versions of Drupal 8 prior to 8.9.x are end-of-life and do not receive security coverage.

Reported By: 

• Or Sahar

Fixed By: 

• Greg Knaddison of the Drupal Security Team
• Jess of the Drupal Security Team
• Krzysztof Krzton
• Lee Rowlands of the Drupal Security Team
• Michael Hess of the Drupal Security Team

Project: Drupal coreDate: 2021-April-21Security risk: Critical 15∕25 AC:Basic/A:None/CI:Some/II:Some/E:Theoretical/TD:DefaultVulnerability: Cross-site scriptingCVE IDs: CVE-2020-13672Description: 

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: 

• Jasper Mattsson

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