Directory traversal vulnerability in the RokDownloads (com_rokdownloads) component before 1.0.1 for Joomla! allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the controller parameter to index.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/56898
http://www.rockettheme.com/extensions-updates/638-rokdownloads-10-released