jQuery UI is a third-party library used by Drupal. This library was previously thought to be end-of-life.
Late in 2021, jQuery UI announced that they would be continuing development, and released a jQuery UI 1.13.0 version. As part of this 1.13.0 update, they disclosed the following security issue that may affect Drupal 9 and 7:
CVE-2021-41184: XSS in the `of` option of the `.position()` util
It is possible that this vulnerability is exploitable with some Drupal modules. As a precaution, this Drupal security release applies the fix for the above cross-site description issue, without making any of the other changes to the jQuery version that is included in Drupal.
This advisory is not covered by Drupal Steward.
Install the latest version:
All versions of Drupal 8 and 9 prior to 9.2.x are end-of-life and do not receive security coverage. Note that Drupal 8 has reached its end of life.