Cross-site scripting (XSS) vulnerability in the "Create download task via URL" feature in Synology Download Station before 3.5-2967 allows remote attackers to inject arbitrary web script or HTML via the urls parameter in an add_url_task action to dlm/downloadman.cgi.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.