CVE-2026-70593 PUBLISHED

Ghost: Theme Upload Path Traversal

Assigner: GitHub_M
Reserved: 04.08.2026 Published: 04.08.2026 Updated: 05.08.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:L
CVSS Score: 6.6

Attack Vector	Network	Scope	Changed
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	High	Integrity Impact	High
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	TryGhost
Product	Ghost
Versions	Version >= 0.10.0, < 6.54.1 is affected

References

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

Problem Types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE