A cross-site scripting vulnerability in Caucho Technology Resin before 1.2.4 allows a malicious webmaster to embed Javascript in a hyperlink that ends in a .jsp extension, which causes an error message that does not properly quote the Javascript.
https://exchange.xforce.ibmcloud.com/vulnerabilities/6793
http://www.kb.cert.org/vuls/id/981651
http://www.caucho.com/products/resin/changes.xtp
http://archive.cert.uni-stuttgart.de/archive/bugtraq/2001/07/msg00021.html