WorkforceROI Xpede 4.1 allows remote attackers to read user timesheets by modifying the TSN ID parameter to the ts_app_process.asp script, which is easily guessable because it is incremented by 1 for each new timesheet.
http://www.securityfocus.com/bid/4556
http://www.iss.net/security_center/static/8907.php
http://archives.neohapsis.com/archives/bugtraq/2002-04/0273.html