I guess it depends on what you mean with 'it'. The truth is there is no new security hole in vBulletin and Xenforo is just another vBulletin clone. I warned them about continuing to use vBSEO as this incident was
inevitable and suggested a replacement as you can read here:
https://www.rollitup.org/t/while-you-are-contemplating-the-like-button-2-things.792661/page-2#post-10386672 Not that I expect that asshat global mod to take it seriously... too busy trying to make things personal.
RIU is slandering vBulletin (hard working honest people) while really it's admin-error. Switching to Xenforo doesn't make 'the site' any more secure or better in anyway. Only different, it gets less attacked by hackers because it's less popular. Relying on that to lead to more security is as incompetent as using expired software.
It's funny how easy so many sheople swallow the BS.