CVE-2022-23490: Bigbluebutton

Medium severity, CVSS 4.3. EPSS: 0.5% chance of exploitation in the next 30 days.

BigBlueButton is an open source web conferencing system. Versions prior to 2.4.0 expose sensitive information to Unauthorized Actors. This issue affects meetings with polls, where the attacker is a meeting participant. Subscribing to the current-poll collection does not update the client UI, but does give the attacker access to the contents of the collection, which include the individual poll responses. This issue is patched in version 2.4.0. There are no workarounds.

Affected products

• Bigbluebutton Bigbluebutton: before 2.4.0 (fixed in 2.4.0)

Published 2022-12-16. Last modified 2026-06-17.