Cross-site scripting vulnerability in Apache Tomcat 4.0.3 allows remote attackers to execute script as other web users via script in a URL with the /servlet/ mapping, which does not filter the script when an exception is thrown by the servlet.
https://exchange.xforce.ibmcloud.com/vulnerabilities/9520
http://www.securityfocus.com/bid/5193
http://marc.info/?l=bugtraq&m=102631703811297&w=2
http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0014.html