Cross-site scripting (XSS) vulnerability in the National Rail Enquiries Live Departure Boards gadget before 1.1 allows remote National Rail Enquiries servers or man-in-the-middle attackers to inject arbitrary web script or HTML, and execute arbitrary code, via a response body, as demonstrated by a SCRIPT element that references a vbscript: URI.
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.