Description
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 participant could reuse that participant-s session and impersonate the participant in the same meeting because handleJoinExistingUser was a routable controller action rather than a private helper. This issue is fixed in version 3.0.23.
CVSS 7.1EPSS 0.21%Risque 0.72
Voir la source- Publication
- 2026-08-20 22:17:19
- Versions concernées
- <3.0.23
- Type
- Application web
- Dernière modification
- 2026-08-25 16:16:53
- Vecteur
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N