According to the copyright at the bottom of the page, the version you're running is from 2019.
In 2020, a vulnerability in Xenforo 2.1 was patched, which involved XSS in content approval queue: https://xenforo.com/community/threa...-fix-and-media-gallery-2-1-7-released.175577/
This vulnerability allows data theft and unauthenticated access to be performed with a specially crafted thread title, accessing the forum with elevated privileges when a moderator checks the approval queue. As far as I know, the first few posts on the Codex have to be manually approved.
It would be a HUGE shame if somebody exploited this vulnerability and say, banned Crispy and deleted all of his posts. I am thus advising you to perform a forum software upgrade as soon as possible.
In 2020, a vulnerability in Xenforo 2.1 was patched, which involved XSS in content approval queue: https://xenforo.com/community/threa...-fix-and-media-gallery-2-1-7-released.175577/
This vulnerability allows data theft and unauthenticated access to be performed with a specially crafted thread title, accessing the forum with elevated privileges when a moderator checks the approval queue. As far as I know, the first few posts on the Codex have to be manually approved.
It would be a HUGE shame if somebody exploited this vulnerability and say, banned Crispy and deleted all of his posts. I am thus advising you to perform a forum software upgrade as soon as possible.