Multiple cross-site scripting (XSS) vulnerabilities in Admin/login/default.asp in DDSN Interactive cm3 Acora CMS 6.0.6/1a, 6.0.2/1a, 5.5.7/12b, 5.5.0/1b-p1, and possibly other versions allow remote attackers to inject arbitrary web script or HTML via the (1) username, (2) url, (3) qstr parameter.