main.php in Gallery 2.0 Alpha allows remote attackers to gain sensitive information by changing the value of g2_subView parameter, which reveals the path in an error message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/18940
http://theinsider.deep-ice.com/texts/advisory69.txt
http://marc.info/?l=bugtraq&m=110608459222364&w=2
http://gallery.menalto.com/modules.php?op=modload&name=News&file=article&sid=147
http://archives.neohapsis.com/archives/vulnwatch/2005-q1/0031.html