CVE-2022-29233

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    CVE-2022-29233

    Published: 1 Jun 2022Last Modified: 21 Oct 2026

    Summary: Improper access control for breakout rooms in BigBlue Button

    Details: BigBlueButton is an open source web conferencing system. In BigBlueButton starting with 2.2 but before 2.3.18 and 2.4-rc-1, an attacker can circumvent access controls to gain access to all breakout rooms of the meeting they are in. The permission checks rely on knowledge of internal ids rather than on verification of the role of the user. Versions 2.3.18 and 2.4-rc-1 contain a patch for this issue. There are currently no known workarounds.

    References: https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18, https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/29xxx/CVE-2022-29233.json, https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3mr9-p9gw-cf33, https://nvd.nist.gov/vuln/detail/CVE-2022-29233, https://github.com/bigbluebutton/bigbluebutton/pull/13117, https://github.com/bigbluebutton/bigbluebutton/pull/14265

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 68e35c9d722e62892d2e885646a9eab3bf44f77d
    Fixed -0bcb8c2b9e850b99faae7fcfb3d1014e64bff97d

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2022-29233 | CVE-DB