Security researcher publishes details and exploit code for a vBulletin zero-day

From zdnet.com

vBulletin

A security researcher has published details and proof-of-concept exploit code for a zero-day vulnerability in vBulletin, one of today’s most popular forum software.

The zero-day is a bypass for a patch from a previous vBulletin zero-day — namely CVE-2019-16759, disclosed in September 2019.

The previous zero-day allowed attackers to exploit a bug in the vBulletin template system to run malicious code and take over forums without needing to authenticate on the victim sites (a type of bug called a pre-auth RCE).

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