Description
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker who is able to obtain the meeting identifier for a meeting on a server can find information related to an external video being shared, like the current timestamp and play/pause. The problem has been patched in versions 2.3.18 and 2.4-rc-6 by modifying the stream to send the data only for users in the meeting. There are currently no known workarounds.
References (5)
Core 5
Core References
Patch, Third Party Advisory x_refsource_confirm
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-x82p-j22f-v4q6
Patch, Third Party Advisory x_refsource_misc
https://github.com/bigbluebutton/bigbluebutton/pull/13788
Patch, Third Party Advisory x_refsource_misc
https://github.com/bigbluebutton/bigbluebutton/pull/14265
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
Scores
CVSS v3
5.3
EPSS
0.0097
EPSS Percentile
57.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-200
Status
published
Products (2)
bigbluebutton/bigbluebutton
2.4 alpha1 (10 CPE variants)
bigbluebutton/bigbluebutton
2.2.0 - 2.3.18
Published
Jun 02, 2022
Tracked Since
Feb 18, 2026