CVE-2026-46682: BigBlueButton: Blind SQL Injection AUTH (Moderator)

Severity: high (CVSS 8.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-20 · updated 2026-10-26
Weakness: CWE-89

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.

Affected products

bigbluebutton: before 3.0.23

References

https://github.com/bigbluebutton/bigbluebutton/commit/3365e340e0c102de0f8ea007c05053b562b6fa2b
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v3.0.23
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-gfv2-46v4-jvw5

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