A drectory traversal vulnerability in the redTWITTER (com_redtwitter) component 1.0.x including 1.0b11 for Joomla! allows remote attackers to read arbitrary files via a .. (dot dot) in the view parameter to index.php.
View the template here CVE-2010-1983.yaml
References:
http://www.exploit-db.com/exploits/12055