WordPress 2.0.3 allows remote attackers to obtain the installation path via a direct request to various files, such as those in the (1) wp-admin, (2) wp-content, and (3) wp-includes directories, possibly due to uninitialized variables.
secunia.com/advisories/20928
secunia.com/advisories/21447
security.gentoo.org/glsa/glsa-200608-19.xml
securityreason.com/securityalert/1187
www.securityfocus.com/archive/1/438942/100/0/threaded
www.securityfocus.com/archive/1/439062/100/0/threaded
www.securityfocus.com/bid/18779
www.vupen.com/english/advisories/2006/2661