Auth bypass in Bigbluebutton

CVE-2022-41962

BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6, and 2.5-alpha-1 contain Incorrect Authorization for setting emoji status. A user with moderator rights can use the clear status feature to set any emoji status for other users. Moderators should only be able to set none as the status of other users. This issue is patched in 2.4-rc-6 and 2.5-alpha-1There are no workarounds.

Vulnerability class: Broken Access Control

EPSS: 0.007 (47.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-41962?
CVE-2022-41962 is a low-severity vulnerability in Bigbluebutton, classified under Incorrect Authorization. CVSS score: 2.7/10. Published 2022-12-16.
How severe is CVE-2022-41962?
Low severity. CVSS v3 base score is 2.7 out of 10.