CVE-2026-46355
🟡 Monitoruj
W BigBlueButton przed 3.0.23 można było podszyć się pod aktywnego uczestnika spotkania.
CVSS
7.1
EPSS
0.2%
Exploit
none
Vendor
Opis źródłowy (NVD)
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.
brak
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 7.1 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.2% |
| Opublikowano (NVD) | 2026-08-20 22:17:19 UTC |
| Ostatnia modyfikacja (NVD) | 2026-09-16 13:42:43 UTC |
Referencje
- https://github.com/bigbluebutton/bigbluebutton/commit/972b04e474e195cbd708b5b3f0485fe528a1a85b ([email protected])
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v3.0.23 ([email protected])
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-38fw-2gq7-ccgr ([email protected])