BigBlueButton’s missing authorization allows viewer to inject/overwrite captions_CVE-2026-41127

6.5 / 10

MEDIUM

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

Description

BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have a missing authorization that allows viewers to inject/overwrite captions Version 3.0.24 tightened the permissions on who is able to submit captions. No known workarounds are available.

Basic Information

ID CVE-2026-41127

Source GitHub_M

Published Apr 21, 2026 at 23:24

Affected Product

Vendor bigbluebutton

Product bigbluebutton

Version < 3.0.24

Affected Versions bigbluebutton bigbluebutton < 3.0.24

CWE Classification

CWE-639

References

github.com /bigbluebutton/bigbluebutton/security/advisories/GHSA-q387-2q28-mg33

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    "published": "2026-04-21T23:24:46.671Z",
    "modified": "2026-04-21T23:24:46.671Z",
    "type": "cve",
    "title": "BigBlueButton's missing authorization allows viewer to inject/overwrite captions",
    "source": "GitHub_M",
    "references": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-q387-2q28-mg33",
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