Trello: Error Page Text Injection.

AS we can see in report an user or attacker is able to inject his text into error page and can trap to user to visit other site by adding following link /test/%2f../It%20has%20been%20changed%20by%20a%20new%20one%20https://www.malicious.com%20so%20go%20to%20the%20new%20one%20since%20this%20one A...

CVE-2013-4098

ServerAdmin/ErrorViewer.jsp in DS3 Authentication Server allow remote attackers to inject arbitrary error-page text via the message parameter...