Multiple cross-site scripting (XSS) vulnerabilities in Diferior 8.03 allow remote attackers to inject arbitrary web script or HTML via the (1) post_content parameter to post/edit/2/p1.html, related to views/post.php; the (2) slogan parameter to admin/site/2.html, related to views/admin.php; or the (3) subcatname or (4) description parameter to admin/forum/create_sub.html, related to views/admin.php.