CVE-2026-70593 Details
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.
A vulnerability exists in Ghost, a Node.js content management system, in versions 0.10.0 prior to 6.54.1. This issue allows a staff user to upload files to locations outside the designated uploads directory by exploiting custom themes. The vulnerability arises from improper handling of theme storage names and the upload path, which could be manipulated to traverse directories. As a result, an attacker could potentially modify the functionality of the Ghost installation.
Users can update to Ghost version 6.54.1, which includes a fix for this vulnerability. Self-hosted users can find the official Ghost Docker image on Docker Hub. Instructions for updating a Docker-based Ghost instance are available in the Ghost documentation. For Ghost-CLI installations, guidance on updating to the latest version is also provided in the Ghost documentation.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 4, 2026CISA-ADP
Assessed Aug 5, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/TryGhost/Ghost/commit/fbaa92327e52607036a1e42204c9eadcc751d82c | [email protected] | Source CodeVendor |
| https://github.com/TryGhost/Ghost/releases/tag/v6.54.1 | [email protected] | Release NotesVendor |
| https://github.com/TryGhost/Ghost/security/advisories/GHSA-cjc9-q5gf-327p | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Ghost | >= 0.10.0, < 6.54.1 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 5, 2026 | CVE Modified | CISA-ADP |
| Aug 4, 2026 | New CVE Received | [email protected] |