Medium severity · published Dec 16, 2022
CVE-2022-41964
BigBlueButton is an open source web conferencing system
5.7
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bigbluebutton · Bigbluebutton
2.4; 2.4; 2.4; 2.4; 2.4; 2.4; +7 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-41964
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-41964
Release Notes
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.0
Patch
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-fgmj-rx7j-fqr4
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