6.5

CVE-2026-41127

BigBlueButton's missing authorization allows viewer to inject/overwrite captions

Missing authorization allows viewer to inject/overwrite captions

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.
Mögliche Gegenmaßnahme
Server: We recommend upgrading to the patched version of BigBlueButton.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellerbigbluebutton
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Produkt bigbluebutton
Version < 3.0.24
Status affected
VulnDex Vulnerability Enrichment
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Weitere Schwachstelleninformationen
SystemBigBlueButton
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Produkt Server
Version < 3.0.24
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.075
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE-639 Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-q387-2q28-mg33
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-q387-2q28-mg33
Third Party Advisory