Multiple cross-site scripting (XSS) vulnerabilities in cPanel WebHost Manager (WHM) 3.1.0 allow remote authenticated users to inject arbitrary web script or HTML via the (1) email parameter to (a) scripts2/dochangeemail, the (2) supporturl parameter to (b) cgi/addon_configsupport.cgi, the (3) pkg parameter to (c) scripts/editpkg, the (4) domain parameter to (d) scripts2/domts2 and (e) scripts/editzone, the (5) feature parameter to (g) scripts2/dofeaturemanager, and the (6) ndomain parameter to (h) scripts/park.