CVE-2026-21865

MEDIUM

6.5

Descripcion

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, moderators can convert some personal messages to public topics when they shouldn't have access. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. As a workaround, site admin can temporarily revoke the moderation role from untrusted moderators or remove the moderator group from the "personal message enabled groups" site setting until the Discourse instance has been upgraded to a version that has been patched.

Detalles CVE

Puntuacion CVSS v3.16.5

SeveridadMEDIUM

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosHIGH

Interaccion usuarioNONE

Publicado1/28/2026

Ultima modificacion1/30/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

discourse:discourse

Debilidades (CWE)

CWE-862

Referencias

https://github.com/discourse/discourse/security/advisories/GHSA-4777-wrv5-3g39(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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