Multiple cross-site scripting (XSS) vulnerabilities in PHPKIT 1.6.1 R2 and earlier allow remote attackers to inject arbitrary web script or HTML via multiple vectors in (1) login/profile.php, (2) login/userinfo.php, (3) admin/admin.php, (4) imcenter.php, and the (5) referer statistics, the (6) HTML title element and (7) logo alt attributes in forum postings, and the (8) Homepage field in the Guestbook.