Progress Sitefinity CMS before 10.1 allows XSS via /Pages Parameter : Page Title, /Content/News Parameter : News Title, /Content/List Parameter : List Title, /Content/Documents/LibraryDocuments/incident-request-attachments Parameter : Document Title, /Content/Images/LibraryImages/newsimages Parameter : Image Title, /Content/links Parameter : Link Title, /Content/links Parameter : Link Title, or /Content/Videos/LibraryVideos/default-video-library Parameter : Video Title.