source: http://www.securityfocus.com/bid/9460/info

The WebTrends Reporting Center management interface discloses installation path information when an invalid argument for an interface URI parameter is requested. This information may permit an attacker to enumerate the layout of the underlying file system of the host.

This issue was reported for version 6.1a of the software running on Microsoft Windows. Other platforms and versions may also be affected.

http://www.example.com:1099/viewreport.pl?profileid=dontexist