Description:

Drupal has released a security advisory to address multiple vulnerabilities in the CKEditor library for WYSIWYG editing.  A remote attacker may upload a maliciously crafted file to a vulnerable system to exploit the vulnerability.

Please note that Drupal 8 prior to version 8.9.x and Drupal 9 prior to version 9.1.x have reached End-Of-Life (EOL).  No security updates will be provided after that.  Users should arrange upgrading the Drupal to supported versions or migrating to other supported technology.

Affected Systems:

• Drupal version 8.9.x
• Drupal version 9.1.x
• Drupal version 9.2.x

Impact:

Successful exploitation could lead to cross site scripting on an affected system.

Recommendation:

The product vendor has released patches to address the issues.

• Drupal 8.9.20
https://www.drupal.org/project/drupal/releases/8.9.20
• Drupal 9.1.14
https://www.drupal.org/project/drupal/releases/9.1.14
• Drupal 9.2.9
https://www.drupal.org/project/drupal/releases/9.2.9

More Information:

• https://www.drupal.org/sa-core-2021-011
• https://www.drupal.org/about/core/policies/core-release-cycles/schedule
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41164
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41165