source: https://www.securityfocus.com/bid/2812/info

WebTrends Live is a web-based reporting service which provides interactive tracking of usage statistics and E-commerce revenue.

It is possible to view the source code of arbitrary scripts on the WebTrends Live webserver. This is accomplished by crafting a URL with an encoded space after the filename of the script. 

http://host/remote_login.pl%20