CVE-2025-66488

MEDIUM

4.6

Descricao

Discourse is an open source discussion platform. A vulnerability present in versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 affects anyone who uses S3 for uploads. While scripts may be executed, they will only be run in the context of the S3/CDN domain, with no site credentials. Versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 fix the issue. As a workaround, disallow html or xml files for uploads in authorized_extensions. For existing html xml uploads, site owners can consider deleting them.

Detalhes CVE

Pontuacao CVSS v3.14.6

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioREQUIRED

Publicado1/28/2026

Ultima modificacao1/30/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

discourse:discourse

Fraquezas (CWE)

CWE-116

Referencias

https://github.com/discourse/discourse/security/advisories/GHSA-68jp-3934-62rx(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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