It’s Discuz! 6.0.0, but later i read about it on the packetstorm security.org. And we can see interesting It’s don’t work. Only with tag marquee, if use that code. But if we can use another code:://codepad.org/T8nEpahe and another place (it’s the best) This is a good work on the all sites powered by Discuz.0. It’s not a bug, but it’s a very good work.”]
Source: http://st2tea.blogspot.com/2012/01/forummaxthoncom-cross-site-scripting.html