Joomla! Component JE Story Submit - 'index.php' Arbitrary File Upload

source: https://www.securityfocus.com/bid/51657/info

The 'com_jesubmit' component for Joomla! is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to adequately sanitize user-supplied input.

An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible.

http://www.example.com/index.php?option=com_jesubmit&view=jesubmit&Itemid=[id]&lang=en