CVE-2022-29235— Limited data exposure for shared external videos in BigBlueButton
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I. Basic Information for CVE-2022-29235
Vulnerability Information
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Vulnerability Title
Limited data exposure for shared external videos in BigBlueButton
Source: NVD (National Vulnerability Database)
Vulnerability Description
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker who is able to obtain the meeting identifier for a meeting on a server can find information related to an external video being shared, like the current timestamp and play/pause. The problem has been patched in versions 2.3.18 and 2.4-rc-6 by modifying the stream to send the data only for users in the meeting. There are currently no known workarounds.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
BigBlueButton 安全漏洞
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 2.2 到 2.3.18 和 2.4-rc-6 版本存在安全漏洞，攻击者利用该漏洞可以找到与正在共享的外部视频相关的信息。
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 | >= 2.2, < 2.3.18 | - |
II. Public POCs for CVE-2022-29235
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://github.com/bigbluebutton/bigbluebutton/pull/13788x_refsource_MISC
- https://github.com/bigbluebutton/bigbluebutton/pull/14265x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2022-29235
Same Patch Batch · bigbluebutton · 2022-06-01 · 6 CVEs total
| CVE-2022-29169 | 7.5 HIGH | ReDoS on endpoint html5client/useragent in BigBlueButton |
| CVE-2022-29232 | 6.5 MEDIUM | Exposure of messages in BigBlueButton public chats |
| CVE-2022-29233 | 4.3 MEDIUM | Improper access control for breakout rooms in BigBlue Button |
| CVE-2022-29234 | 4.3 MEDIUM | Grace period for lock settings in public/private chats in BigBlueButton |
| CVE-2022-29236 | 4.3 MEDIUM | Improper access control for pencil annotations in BigBlueButton |
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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quarkus-openapi-generator has overly broad path-parameter ma - CVE-2026-8198
Activity Logs, User Activity Tracking, Multisite Activity Lo - CVE-2026-42456
AnythingLLM: Cross-User TTS Audio Disclosure via Chat ID (ID - CVE-2026-41520
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