Multiple cross-site scripting (XSS) vulnerabilities in Jetbox CMS 2.1 SR1 allow remote attackers to inject arbitrary web script or HTML via the (1) login parameter in admin/cms/index.php, (2) unspecified parameters in the "Supply news" page in formmail.php, (3) the URL in the "Site statistics" page, and the (5) query_string parameter when performing a search.