CVE-2022-23488

MEDIUM

BigBlueButton < 2.4-rc-6 - Unauthorized Webcam Stream Access via Lock Setting Bypass

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6

Scores

CVSS v3 6.5
EPSS 0.0057
EPSS Percentile 42.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-201 CWE-200 CWE-863
Status published
Products (2)
bigbluebutton/bigbluebutton 2.4 alpha1 (11 CPE variants)
bigbluebutton/bigbluebutton < 2.4
Published Dec 17, 2022
Tracked Since Feb 18, 2026