CVE-2026-70593

Published: Aug 4, 2026Modified: Oct 24, 2026Deferred

6.6

Vector

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

Exploitability: 1.3 / Impact: 4.7

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-22

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

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (3)

https://github.com/TryGhost/Ghost/commit/fbaa92327e52607036a1e42204c9eadcc751d82c

Source: security-advisories@github.com

https://github.com/TryGhost/Ghost/releases/tag/v6.54.1

Source: security-advisories@github.com

https://github.com/TryGhost/Ghost/security/advisories/GHSA-cjc9-q5gf-327p

Source: security-advisories@github.com

Timeline

No history available yet.