CVE-2026-27736

MEDIUM

6.1

Beschreibung

BigBlueButton is an open-source virtual classroom. In versions on the 3.x branch prior to 3.0.20, the string received with errorRedirectUrl lacks validation, using it directly in the respondWithRedirect function leads to an Open Redirect vulnerability. BigBlueButton 3.0.20 patches the issue. No known workarounds are available.

CVE Details

CVSS v3.1 Bewertung6.1

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionREQUIRED

Veroffentlicht2/25/2026

Zuletzt geandert3/5/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

bigbluebutton:bigbluebutton

Schwachen (CWE)

CWE-601

Referenzen

https://github.com/bigbluebutton/bigbluebutton/commit/691f92f3af0d6b796b91cb968977068663119812(security-advisories@github.com)

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-65cv-rg9f-qqrx(security-advisories@github.com)

IOC Korrelationen

Keine Korrelationen erfasst

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