vBulletin is a widely used Internet forum software that powers over 100,000 websites on the Internet. The software fixes a critical security flaw identified as CVE-2020-12720. Forum administrators are advised to download and install respective patches for the following versions of their forum software as soon as possible. There was no proof-of-concept code available at the time of writing this news or information about the vulnerability being exploited in the wild, expectedly, an exploit for the flaw wouldn’t take much time to surface on the internet.
Source: https://thehackernews.com/2020/05/vBulletin-access-vulnerability.html