CVE-2022-29232 Exposure of messages in BigBlueButton public chats

Medium 6.5 Published 1 Jun 2022 Updated 23 Apr 2025

An attacker participating in a meeting can access public chat messages from other meetings on the same server, exposing sensitive communication data.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-29232?

CVE-2022-29232 is a medium-severity vulnerability in bigbluebutton, published on 1 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

BigBlueButton is an open source web conferencing system. Starting with version 2.2 and prior to versions 2.3.9 and 2.4-beta-1, an attacker can circumvent access controls to obtain the content of public chat messages from different meetings on the server. The attacker must be a participant in a meeting on the server. BigBlueButton versions 2.3.9 and 2.4-beta-1 contain a patch for this issue. There are currently no known workarounds.

Weakness: CWE-200

Which versions are affected by CVE-2022-29232?

It affects 1 product.

Products include Bigbluebutton Bigbluebutton.

How do I fix CVE-2022-29232?

No fix has been published for CVE-2022-29232 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-29232 being exploited?

There is no known exploitation of CVE-2022-29232 in the wild and no public exploit code.

Sources

Also known as GHSA-3fqh-p4qr-vfm9.