CVE-2022-41964: Bigbluebutton

Medium severity, CVSS 5.7. EPSS: 0.6% chance of exploitation in the next 30 days.

BigBlueButton is an open source web conferencing system. This vulnerability only affects release candidates of BigBlueButton 2.4. The attacker can start a subscription for poll results before starting an anonymous poll, and use this subscription to see individual responses in the anonymous poll. The attacker had to be a meeting presenter. This issue is patched in version 2.4.0. There are no workarounds.

Affected products

• Bigbluebutton Bigbluebutton: version 2.4 only

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