CVE-2022-41964— BigBlueButton contains Response leaks in anonymous polls
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I. Basic Information for CVE-2022-41964
Vulnerability Information
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Vulnerability Title
BigBlueButton contains Response leaks in anonymous polls
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
BigBlueButton 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton 2.4.0之前版本存在信息泄露漏洞，攻击者利用该漏洞可以在开始匿名投票之前开始订阅投票结果，并使用此订阅查看匿名投票中的个人响应。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| bigbluebutton | bigbluebutton | >= 2.4-alpha-1, < 2.4.0 | - |
II. Public POCs for CVE-2022-41964
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · bigbluebutton · 2022-12-16 · 5 CVEs total
| CVE-2022-23490 | 4.3 MEDIUM | Improper access control to polling votes |
| CVE-2022-41961 | 4.3 MEDIUM | BigBlueButton subject to Ineffective user bans |
| CVE-2022-41962 | 2.7 LOW | BigBlueButton contains Incorrect Authorization for setting emoji status |
| CVE-2022-41963 | 2.7 LOW | BigBlueButton contains Improper Preservation of Permissions for whiteboard |
IV. Related Vulnerabilities
Same product: bigbluebutton
- CVE-2026-41127
BigBlueButton's missing authorization allows viewer to injec - CVE-2026-41126
BigBlueButton has Open Redirect through bigbluebutton/api/jo - CVE-2026-27736
BigBlueButton has Open Redirect vulnerability in ApiControll - CVE-2026-27467
BigBlueButton: Audio from participants to the server initial - CVE-2026-27466
BigBlueButton: Exposed ClamAV port enables Denial of Service
Same vendor: bigbluebutton
- CVE-2026-41127
BigBlueButton's missing authorization allows viewer to injec - CVE-2026-41126
BigBlueButton has Open Redirect through bigbluebutton/api/jo - CVE-2026-27736
BigBlueButton has Open Redirect vulnerability in ApiControll - CVE-2026-27467
BigBlueButton: Audio from participants to the server initial - CVE-2026-27466
BigBlueButton: Exposed ClamAV port enables Denial of Service
Same weakness: CWE-200
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V. Comments for CVE-2022-41964
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