Vulnerability · Published Dec 16, 2022 · Assigned by GitHub_M

CVE-2022-41964BigBlueButton contains Response leaks in anonymous polls

Medium 5.7

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 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)5.7Medium

Exploit odds (30 days)0.6%top 51.2% 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. This vulnerability only affects release candidates of BigBlueButton 2.4. The attacker can start a subscription for poll results before starting an anonymous poll, and use this subscription to see individual responses in the anonymous poll. The attacker had to be a meeting presenter. This issue is patched in version 2.4.0. There are no workarounds.

Affected products (as reported)

Vendor	Product	Versions
bigbluebutton	bigbluebutton	>= 2.4-alpha-1, < 2.4.0

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

References

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-fgmj-rx7j-fqr4 x_refsource_CONFIRM
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.0 x_refsource_MISC