CVE-2026-70593

Ghost is a Node.js content management system. From 0.10.0 until 6.54.1, a vulnerability in custom themes allowed a staff user to write files outside of the uploads directory. This could be used to alter the behavior of the installation through custom theme upload path traversal in LocalStorageBase and theme storage name handling. This issue is fixed in version 6.54.1.

CVSS v3 6.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.3 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://github.com/TryGhost/Ghost/commit/fbaa92327e52607036a1e42204c9eadcc751d82c
https://github.com/TryGhost/Ghost/releases/tag/v6.54.1
https://github.com/TryGhost/Ghost/security/advisories/GHSA-cjc9-q5gf-327p

Configurations

No configuration.

History

23 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Ghost es un sistema de gestión de contenido Node.js. Desde la versión 0.10.0 hasta la 6.54.1, una vulnerabilidad en los temas personalizados permitía a un usuario del personal escribir archivos fuera del directorio de cargas (uploads). Esto podría usarse para alterar el comportamiento de la instalación mediante un salto de ruta de carga de tema personalizado en LocalStorageBase y el manejo del nombre de almacenamiento del tema. Este problema está solucionado en la versión 6.54.1.

Information

Published : 2026-08-04 22:17

Updated : 2026-10-24 15:10

NVD link : CVE-2026-70593

Mitre link : CVE-2026-70593

CVE.ORG link : CVE-2026-70593

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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