The Drupal project uses the pear Archive_Tar library, which has released a security update that impacts Drupal.
The vulnerability is mitigated by the fact that Drupal core's use of the Archive_Tar library is not vulnerable, as it does not permit symlinks.
Exploitation may be possible if contrib or custom code uses the library to extract tar archives (for example .tar, .tar.gz, .bz2, or .tlz) which come from a potentially untrusted source.
This advisory is not covered by Drupal Steward.
Solution:Install the latest version:
Versions of Drupal 8 prior to 8.9.x and versions of Drupal 9 prior to 9.1.x are end-of-life and do not receive security coverage.
Reported By: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.
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:
Versions of Drupal 8 prior to 8.9.x are end-of-life and do not receive security coverage.
Reported By: Fixed By: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:
Versions of Drupal 8 prior to 8.9.x are end-of-life and do not receive security coverage.
Reported By: Fixed By:
