Vulnerability · Published Dec 16, 2022 · Assigned by GitHub_M

CVE-2022-23490Improper access control to polling votes

Medium 4.3

In plain English

A medium-severity information exposure in bigbluebutton from bigbluebutton. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.5%top 59.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
bigbluebutton	bigbluebutton	< 2.4.0

Weakness: CWE-200, CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4qgc-xhw5-6qfg x_refsource_CONFIRM
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.0 x_refsource_MISC