CVE-2020-27609 json
BigBlueButton through 2.2.28 records a video meeting despite the deactivation of video recording in the user interface.
published 2020-10-21 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20116
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
BigBlueButton through 2.2.28 records a video meeting despite the deactivation of video recording in the user interface. This may result in data storage beyond what is authorized for a specific meeting topic or participant.
Exploit prediction
0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- golem.de https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
golem.de
/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html
exploit, third-party-advisory
-
docs.bigbluebutton.org
/admin/privacy.html
not-applicable
Sources
- CVE List CVE-2020-27609
- NVD CVE-2020-27609
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.