Multiple cross-site scripting (XSS) vulnerabilities in Infopop UBB.Threads before 6.5.2 Beta allow remote attackers to inject arbitrary web script or HTML via the (1) Searchpage parameter to dosearch.php (2) Number (3) what or (4) page parameter to newreply.php (5) Number (6) Board or (7) what parameter to showprofile.php (8) fpart or (9) page parameter to showflat.php or (10) like parameter to showmembers.php.