Directory traversal vulnerability in the Affiliate Datafeeds (com_datafeeds) component build 880 for Joomla! allows remote attackers to read arbitrary files via a .. (dot dot) in the controller parameter to index.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/57570
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-1998
http://www.securityfocus.com/bid/39246