CVE-2020-27612

4.3 mediumEPSS 0.7%

Medium (4.3) in bigbluebutton bigbluebutton. EPSS 0.7% chance of exploitation in the next 30 days.

Greenlight in BigBlueButton through 2.2.28 places usernames in room URLs, which may represent an unintended information leak to users in a room, or an information leak to outsiders if any user publishes a screenshot of a browser window.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
CWE: CWE-200
Published: 2020-10-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

bigbluebutton:bigbluebutton

References

https://docs.bigbluebutton.org/admin/privacy.html
https://docs.bigbluebutton.org/admin/privacy.html

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