Directory traversal vulnerability in richedit/keyboard.php in eCardMAX HotEditor (Hot Editor) 4.0, and the HotEditor plugin for MyBB, allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the first parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33521
http://www.vupen.com/english/advisories/2007/1315
http://www.securityfocus.com/archive/1/465094/100/0/threaded
http://www.securityfocus.com/archive/1/465092/100/0/threaded
http://securityreason.com/securityalert/2533