High severity · published Aug 20, 2026
CVE-2026-46682
BigBlueButton: Blind SQL Injection AUTH (Moderator)
8.5
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
bigbluebutton · bigbluebutton
< 3.0.23 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46682
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46682
github.com
https://github.com/bigbluebutton/bigbluebutton/commit/3365e340e0c102de0f8ea007c05053b562b6fa2b
github.com
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v3.0.23
github.com
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-gfv2-46v4-jvw5
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