CVE-2020-27612

Name: CVE-2020-27612
Creator: NVD / NIST
Published: 2020-10-21T15:15:27.517+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2020-27612 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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.. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.67%

47.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Bigbluebutton	Bigbluebutton	<= 2.2.28

References

https://docs.bigbluebutton.org/admin/privacy.htmlNot Applicable
https://docs.bigbluebutton.org/admin/privacy.htmlNot Applicable

Timeline

Published: Oct 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27612?

How severe is CVE-2020-27612?

CVE-2020-27612 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27612?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27612?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST