PT-2026-52072 · Tryghost · Ghost

Publicado 2026-06-24 · Atualizado 2026-06-24 · CVE-2026-53948

NVD

CVSS v3.1

5.4

Média

Vetor base

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

Ghost is a Node.js content management system. From 6.19.4 until 6.21.1, insufficient validation of the client-supplied Content-Type on Ghost's Admin API file upload endpoint allowed uploaded files to be served from the site with an attacker-chosen content type on S3/GCS storage backends. On installations that serve uploaded files from the same origin as the site, this could have been used to facilitate stored cross-site scripting against site visitors or staff. This vulnerability is fixed in 6.21.1.

Correção

Unrestricted File Upload

Enumeração de Fraquezas

CWE-434

Identificadores relacionados

CVE-2026-53948

Produtos afetados

Ghost

Referências · 2

• https://github.com/TryGhost/Ghost/security/advisories/GHSA-944x-pm95-3jpr · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-53948 · Nota de Segurança