CVE-2022-23490

Name: CVE-2022-23490
Creator: NVD / NIST
Published: 2022-12-16T22:15:08.743+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2022-23490 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. BigBlueButton is an open source web conferencing system. Versions prior to 2.4.0 expose sensitive information to Unauthorized Actors. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

BigBlueButton is an open source web conferencing system. Versions prior to 2.4.0 expose sensitive information to Unauthorized Actors. This issue affects meetings with polls, where the attacker is a meeting participant. Subscribing to the current-poll collection does not update the client UI, but does give the attacker access to the contents of the collection, which include the individual poll responses. This issue is patched in version 2.4.0. There are no workarounds.

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

0.43%

34.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Bigbluebutton	Bigbluebutton	< 2.4.0

References

https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.0Release Notes, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4qgc-xhw5-6qfgPatch, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.0Release Notes, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4qgc-xhw5-6qfgPatch, Third Party Advisory

Timeline

Published: Dec 16, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-23490?

How severe is CVE-2022-23490?

CVE-2022-23490 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2022-23490?

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-2022-23490?

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

Scan your code now

Source: NVD / NIST