CVE-2026-46682
Received Received - Intake

SQL Injection in BigBlueButton Prior to 3.0.23

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: GitHub, Inc.

Description
BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton allowed authenticated moderators to inject SQL through the meetingId and userId values used by refreshBreakoutRoomsVisibleForUsers in akka-bbb-apps/src/main/scala/org/bigbluebutton/core/db/BreakoutRoomUserDAO.scala. The method interpolated those values into breakout room visibility queries, allowing arbitrary SQL execution against the application database. This issue is fixed in version 3.0.23.

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-21
AI Q&A
2026-08-21
EPSS Evaluated
N/A
NVD
CVE-2026-46682

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
bigbluebutton bigbluebutton 3.0.23

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

This vulnerability in BigBlueButton before version 3.0.23 allows authenticated moderators to inject SQL code through the meetingId and userId parameters. The flaw exists in the refreshBreakoutRoomsVisibleForUsers function which directly interpolates these values into database queries without proper sanitization, enabling arbitrary SQL execution against the application's database.

Detection Guidance

Detecting this vulnerability requires checking the BigBlueButton version. If your system runs a version prior to 3.0.23, it is vulnerable. Use the command 'bbb-conf --version' to check the installed version.

Impact Analysis

An attacker with moderator privileges could exploit this to read, modify, or delete sensitive data in the application database. This could include user credentials, meeting recordings, or other confidential information stored by BigBlueButton. The impact includes potential data breaches and system compromise.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. Organizations using vulnerable versions may face compliance violations, legal penalties, and reputational damage due to potential data exposure.

Mitigation Strategies

Upgrade BigBlueButton to version 3.0.23 or later immediately. Follow the official BigBlueButton upgrade instructions to ensure all components are updated and the vulnerability is patched.

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