A directory traversal vulnerability in the Picasa2Gallery (com_picasa2gallery) component 1.2.8 and earlier 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-2010-2507.yaml
References:
http://packetstormsecurity.org/1006-exploits/joomlapicasa2gallery-lfi.txt