| Package | Affected versions | Patched versions |
|---|---|---|
| bigbluebutton | ≥ 2.2.0, < 2.3.18≥ 2.4, < 2.4.1 | 2.3.182.4.1 |
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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