In Jenkins Audit Trail Plugin 3.6 and earlier, the default regular expression pattern could be bypassed in many cases by adding a suffix to the URL that would be ignored during request handling.

Jenkins Audit Trail Plugin 3.6 and earlier applies pattern matching to a different representation of request URL paths than the Stapler web framework uses for dispatching requests, which allows attackers to craft URLs that bypass request logging of any target URL.

Jenkins Audit Trail Plugin 3.2 and earlier does not escape the error message for the URL Patterns field form validation, resulting in a reflected cross-site scripting vulnerability.