CVE-2026-27166

MEDIUM

4.1

Descripcion

Discourse is an open source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1 and 2026.1.2, insufficient cleanup in the default Codepen allowed iframes value allows an attacker to trick a user into changing the URL of the main page. This issue has been fixed in versions 2026.3.0-latest.1, 2026.2.1 and 2026.1.2. To workaround this issue, remove Codepen from the list of allowed iframes.

Detalles CVE

Puntuacion CVSS v3.14.1

SeveridadMEDIUM

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioREQUIRED

Publicado3/19/2026

Ultima modificacion3/25/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

discourse:discourse

Debilidades (CWE)

CWE-80

Referencias

https://github.com/discourse/discourse/commit/c4762a4fac2f61f52f325396b11d3aeb955ea925(security-advisories@github.com)

https://github.com/discourse/discourse/security/advisories/GHSA-h653-cq78-vjj2(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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