Cross Site Scripting (XSS) vulnerability in username field in /WebContent/WEB-INF/lib/chatbox.jsp in wliang6 ChatEngine commit fded8e710ad59f816867ad47d7fc4862f6502f3e, allows attackers to execute arbitrary code.
https://github.com/wliang6/ChatEngine/blob/master/WebContent/WEB-INF/lib/chatbox.jsp#L12