stpaulsgallery.com XSS vulnerability

Vulnerable URL: http://www.stpaulsgallery.com/album-prints/queen-news-of-the-world-print-signed-by-brian-may-and-roger-taylor.asp?strParents=%22/%3E%3Cscript%3Ealert%28/XSSPOSED/%29%3C/script%3EID=304ID=1012 Details: Description| Value ---|--- Patched:| No Latest check for patch:| 26.07.2017...