Directory traversal vulnerability in the Shoutbox Pro (com_shoutbox) component 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/57534
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-1561
http://www.securityfocus.com/bid/39213
http://www.exploit-db.com/exploits/12067