CVE-2026-27736

MEDIUM

6.1

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.16.1

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioREQUIRED

Publicado2/25/2026

Ultima modificacion3/5/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

bigbluebutton:bigbluebutton

Debilidades (CWE)

CWE-601

Referencias

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)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.