CVE-2022-23490 MEDIUM

CVE-2022-23490: Improper access control to polling votes

Vendor Bigbluebutton
Product bigbluebutton
Weakness CWE-200 · Info exposure
Published December 16, 2022
Last update April 17, 2025

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 16, 2022 CVE published
April 17, 2025 Record updated