Cross-site scripting vulnerability in Allaire JRun 3.0 and 2.3.3 allows a malicious webmaster to embed Javascript in a request for a .JSP, .shtml, .jsp10, .jrun, or .thtml file that does not exist, which causes the Javascript to be inserted into an error message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/6793
http://www.macromedia.com/v1/handlers/index.cfm?ID=21498&Method=Full
http://www.kb.cert.org/vuls/id/654643
http://archive.cert.uni-stuttgart.de/archive/bugtraq/2001/07/msg00021.html