VULNERABILITY INTELLIGENCE

CVE-2022-23488

CVSS score6.5 MEDIUM

EPSS probability0.62%

CISA KEVNot currently listed

Published2022-12-17

Last modified2026-06-17

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

Description

BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are vulnerable to Insertion of Sensitive Information Into Sent Data. The moderators-only webcams lock setting is not enforced on the backend, which allows an attacker to subscribe to viewers' webcams, even when the lock setting is applied. (The required streamId was being sent to all users even with lock setting applied). This issue is fixed in version 2.4-rc-6. There are no workarounds.

Weakness classification

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-201: Insertion of Sensitive Information Into Sent Data
CWE-863: Incorrect Authorization

Primary references

security-advisories@github.com — Release Notes, Third Party Advisory
security-advisories@github.com — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory