WorkforceROI Xpede 4.1 uses a small random namespace (5 alphanumeric characters) for temporary expense claim reports in the /reports/temp directory, which allows remote attackers to read the reports via a brute force attack.
http://www.securityfocus.com/bid/4554
http://www.iss.net/security_center/static/8905.php
http://archives.neohapsis.com/archives/bugtraq/2002-04/0273.html