Vulnerability: Unauthorized Chat Messages in BigBlueButton

CVE-2022-29234 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4.1, an attacker could send messages to a locked chat within a grace period of 5s any lock setting in the meeting was changed. The attacker needs to be a participant in the meeting. Versions 2.3.18 and 2.4.1 contain a patch for this issue. There are currently no known workarounds.

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