What’s Vulnerable › Vulnerabilities

CVE-2022-41962: BigBlueButton contains Incorrect Authorization for setting emoji status

• Severity: low (CVSS 2.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-16 · updated 2026-06-17
• Weakness: CWE-863

Description

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.

Affected products

• bigbluebutton: before 2.4; 2.4-alpha1, 2.4-alpha2, 2.4-beta1, 2.4-beta2, 2.4-beta3, 2.4-beta4 (+4) — fixed in 2.4

How to fix

Upgrade to a fixed version: bigbluebutton 2.4. Check the vendor advisory for mitigations.

References

• https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
• https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1
• https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-88qf-33qm-9mm7
• https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
• https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1
• https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-88qf-33qm-9mm7

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