Multiple cross-site scripting (XSS) vulnerabilities in ph03y3nk just another flat file (JAF) CMS 4.0 RC1 allow remote attackers to inject arbitrary web script or HTML via (1) the message parameter, and possibly other parameters, in module/shout/jafshout.php (aka the shoutbox); and (2) the message body in a forum post in module/forum/topicwin.php, related to the name, email, title, date, ldate, and lname variables.