Language: Go
Label: vulnerable
CWE: CWE-79 \u2014 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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.

Code:
func rawFileHandler(w http.ResponseWriter, r *http.Request, file *files.FileInfo) (int, error) {
	fd, err := file.Fs.Open(file.Path)
	if err != nil {
		return http.StatusInternalServerError, err
	}
	defer fd.Close()

	setContentDisposition(w, r, file)

	w.Header().Set("Cache-Control", "private")
	http.ServeContent(w, r, file.Name, file.ModTime, fd)
	return 0, nil
}