CVE-2026-55489

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting...

CVE-2026-55491

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script...

CVE-2026-46682

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...

EUVD-2026-63683

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting...

CVE-2026-55489 BigBlueButton: IDOR on BBB through /api/graphql via POST parameter "presentationId" leads to Authentication Bypass

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting...

CVE-2026-55489

BigBlueButton (open-source virtual classroom) is vulnerable to an IDOR (Insecure Direct Object Reference) in its presentation deletion handler. Prior to 3.0.29 , the file RemovePresentationPubMsgHdlr.scala did not verify that a submitted presentationId belonged to the same meeting before performi...

CVE-2026-55489 BigBlueButton: IDOR on BBB through /api/graphql via POST parameter "presentationId" leads to Authentication Bypass

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting...

CVE-2026-55491

BigBlueButton versions prior to 3.0.29 have a stored XSS flaw: the meetingName field is rendered unescaped in record-and-playback/screenshare/playback/index.html.erb, so a low-privileged user can inject script that runs when another user replays the recording. CVSS 3.1 scores 5.4 (Medium). Upgrad...

CVE-2026-55491 BigBlueButton: Stored XSS in Screenshare Recording Playback via Unescaped Meeting Name

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script...

CVE-2026-55491 BigBlueButton: Stored XSS in Screenshare Recording Playback via Unescaped Meeting Name

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script...

EUVD-2026-63682

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script...

CVE-2026-46355

BigBlueButton prior to 3.0.23 exposed the /bigbluebutton/api/handleJoinExistingUser endpoint through a routable controller action in ApiController.groovy rather than a private helper. An authenticated requester who could supply the existingUserID of an active participant was able to reuse that pa...

EUVD-2026-63680

BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed /bigbluebutton/api/handleJoinExistingUser through bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy. A requester able to supply an existingUserID for an active...

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

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...

CVE-2026-46682

BigBlueButton (open-source virtual classroom) is vulnerable to SQL injection in versions prior to 3.0.23 . The flaw resides in the refreshBreakoutRoomsVisibleForUsers method within BreakoutRoomUserDAO.scala, which interpolates meetingId and userId values directly into breakout room visibility que...

EUVD-2026-63677

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...

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

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...

PT-2026-79184

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...

PT-2026-79191

Name of the Vulnerable Software and Affected Versions BigBlueButton versions prior to 3.0.29 Description Presenters can submit a presentationId through the '/api/graphql' endpoint that identifies a presentation belonging to a different meeting. The RemovePresentationPubMsgHdlr.scala function fail...

PT-2026-79183

BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed /bigbluebutton/api/handleJoinExistingUser through bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy. A requester able to supply an existingUserID for an active...