Information disclosure in Bigbluebutton
CVE-2022-41964
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Bigbluebutton — versions >= 2.4-alpha-1, < 2.4.0, 2.4
Weakness classification (CWE)
References
- github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-fgmj-rx7j-fqr4 (Patch, Third Party Advisory)
- github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.0 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2022-41964?
- CVE-2022-41964 is a medium-severity vulnerability in Bigbluebutton, classified under Information Disclosure. CVSS score: 5.7/10. Published 2022-12-16.
- How severe is CVE-2022-41964?
- Medium severity. CVSS v3 base score is 5.7 out of 10.