GHSA-6C3J-C64M-QHGQ XSS in jQuery as used in Drupal, Backdrop CMS, and other products

jQuery from 1.1.4 until 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extendtrue, , ... because of Object.prototype pollution. If an unsanitized source object contained an enumerable proto property, it could extend the native Object.prototype...