In Edifecs Transaction Management through 2021-07-12, an unauthenticated user can inject arbitrary text into a user's browser via logon.jsp?logon_error= on the login screen of the Web application.
https://www.edifecs.com/services/managed-services/
https://gist.github.com/rvismit/c2da674254f53c40d3a9eb3896277ebc