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.