CVE-2022-23488Network attack vector

Viewer webcam disclosure via leaked stream identifiers

Published Dec 17, 2022 · Updated Apr 17, 2025

Information disclosure in BigBlueButton before 2.4-rc-6 allows remote authenticated users to view locked viewer webcam streams. The backend sends viewer stream identifiers to all meeting users and fails to apply moderator-only lock checks when processing subscriptions. Exploitation requires meeting access, an active viewer webcam, and the moderator-only webcam lock; it exposes video without configuration changes.

CVSS severity5.7
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in BigBlueButton before 2.4-rc-6 allows remote authenticated users to view locked viewer webcam streams. The backend sends viewer stream identifiers to all meeting users and fails to apply moderator-only lock checks when processing subscriptions. Exploitation requires meeting access, an active viewer webcam, and the moderator-only webcam lock; it exposes video without configuration changes.

The record

CVE
CVE-2022-23488
Published
Dec 17, 2022
Updated
Apr 17, 2025
Vendor
BigBlueButton Inc.
Product
BigBlueButton
Classifications
CWE-200, CWE-201, T1125
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.4-rc-6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

BigBlueButton Inc. · BigBlueButtonversion=< 2.4-rc-6

Published CVSS scores

6.5CVE ProgramCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.7GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-201Insertion of Sensitive Information Into Sent Data
T1125Video Capture

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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