Blazix before 1.2.2 allows remote attackers to read source code of JSP scripts or list restricted web directories via an HTTP request that ends in a (1) "+" or (2) "\" (backslash) character.
http://www.securityfocus.com/bid/5567
http://www.iss.net/security_center/static/9952.php
http://archives.neohapsis.com/archives/bugtraq/2002-08/0259.html