PT-2026-79191 · Unknown · Bigbluebutton
CVE-2026-55489
·
Published
2026-08-20
·
Updated
2026-08-21
CVSS v3.1
4.9
Medium
| Vector | AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L |
Name of the Vulnerable Software and Affected Versions
BigBlueButton versions prior to 3.0.29
Description
Presenters can submit a
presentationId through the '/api/graphql' endpoint that identifies a presentation belonging to a different meeting. The RemovePresentationPubMsgHdlr.scala function fails to verify the meeting identifier of the presentation before deletion, allowing a presenter with the identifier to delete presentations from other meetings and disrupt their availability.Recommendations
Update to version 3.0.29.
Exploit
Fix
IDOR
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Weakness Enumeration
Related Identifiers
Affected Products
Bigbluebutton