Directory traversal vulnerability in examples/layout/feed-proxy.php in Jack Slocum Ext 1.0 alpha1 (Ext JS) allows remote attackers to read arbitrary files via a .. (dot dot) in the feed parameter. NOTE: analysis by third party researchers indicates that this issue might be platform dependent.
https://www.exploit-db.com/exploits/3800
https://exchange.xforce.ibmcloud.com/vulnerabilities/33864
http://www.securityfocus.com/bid/23643
http://attrition.org/pipermail/vim/2007-April/001549.html