Multiple cross-site scripting (XSS) vulnerabilities in Mambo Site Server 4.0.12 BETA and earlier allow remote attackers to execute script on other clients via (1) the link parameter in sectionswindow.php, the directory parameter in (2) gallery.php, (3) navigation.php, or (4) uploadimage.php, the path parameter in (5) view.php, (6) the choice parameter in upload.php, (7) the sitename parameter in mambosimple.php, (8) the type parameter in upload.php, or the id parameter in (9) emailarticle.php, (10) emailfaq.php, or (11) emailnews.php.