jafaifoundation.org XSS vulnerability

Vulnerable URL: http://www.jafaifoundation.org/wp-content/plugins/wp-simpleviewer/svcore/full.html?bg="222222=http://www.jafaifoundation.org/wp-content/plugins/wp-simpleviewer/gallery.php?galleryid=6=http://www.jafaifoundation.org/=true=true=false=true=true=true=fff=fff=true=-1=Project Page Galle...