From zdnet.com
![vBulletin](https://zdnet1.cbsistatic.com/hub/i/2019/09/24/2b6903dc-3351-4dfa-98a5-6b2375b9eca9/e17eeb332d7794b166e344b52a09a522/vbulletin.png)
An anonymous security researcher has published details about a zero-day in vBulletin, today’s most popular internet forum software.
Because of this individual’s actions, security experts are now concerned that the publication of details about this unpatched vulnerability could trigger a wave of forum hacks across the internet, with hackers taking over forum installations and stealing user information in bulk, as a result.