jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype.

In the project create screen it's possible to inject malicious JS code to the certain fields. The code might be executed in the Reporting screen. This issue affects: OTRS AG Time Accounting: 7.0.x versions prior to 7.0.19.