A 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 impacts via a .. (dot dot) in the controller parameter to index.php.
View the template here CVE-2010-2036.yaml
References:
http://packetstormsecurity.org/1005-exploits/joomlaperchafa-lfi.txt