Multiple cross-site scripting (XSS) vulnerabilities in XMB (aka extreme message board) 1.9 beta (aka Nexus beta) allow remote attackers to inject arbitrary web script or HTML via (1) the u2uheader parameter in editprofile.php, the restrict parameter in (2) member.php, (3) misc.php, and (4) today.php, and (5) an arbitrary parameter in phpinfo.php.