vBulletin Update Available

There has been released an update to vBulletin, a popular forum software that is used on almost 20000 internet sites to address a critical security vulnerability. The vulnerability bypasses a fix for CVE-2019-16759, a previously disclosed remote code execution vulnerability in vBulletin. There have already been seen attacks in the wild exploiting this vulnerability.

Currently there are fix available for these vBulletin versions:
5.6.2
5.6.1
5.6.0

All other versions of vBulletin prior to the 5.6.x branch are considered vulnerable. Users should migrate over to a patched version as soon as possible.

Instructions for updating:
https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patch

More information:
https://www.tenable.com/blog/zero-day-remote-code-execution-vulnerability-in-vbulletin-disclosed