A directory traversal vulnerability in the PicSell (com_picsell) component 1.0 for Joomla! allows remote attackers to read arbitrary files via a .. (dot dot) in the dflink parameter in a prevsell dwnfree action to index.php.
View the template here CVE-2010-3203.yaml
References:
https://github.com/ARPSyndicate/kenzer-templates