Directory traversal vulnerability in the Percha Fields Attach (com_perchafieldsattach) component 1.x for Joomla! allows remote attackers to read arbitrary files and possibly have unspecified other impact via a .. (dot dot) in the controller parameter to index.php.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-2056
http://www.securityfocus.com/bid/40244
http://packetstormsecurity.org/1005-exploits/joomlaperchafa-lfi.txt