CVE-2022-29235
Limited data exposure for shared external videos in BigBlueButton
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Timeline
ID reserved
By GitHub_M
- 49 days later
· 49 days later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.1% · top 35% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
- affected >= 2.2, < 2.3.18
- affected >= 2.4-alpha-1, < 2.4-rc-6
References (5)
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-x82p-j22f-v4q6 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/bigbluebutton/bigbluebutton/pull/13788 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/bigbluebutton/bigbluebutton/pull/14265 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-29235)Record last updated .