github.com
https://github.com/TryGhost/Ghost CVE-2026-70593
MEDIUM
Ghost: Theme Upload Path Traversal
Record summary
CVE-2026-70593 has a selected CVSS score of 6.6 (medium).
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.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableNo
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 5, 2026 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
| CVE List | >= 0.10.0, < 6.54.1 | affected | |
ghostBrowse npm / ghost | GitHub Advisory | 0.10.0 to < 6.54.1 · Fixed in 6.54.1 | affected |
References
4github.com
https://github.com/TryGhost/Ghost/commit/fbaa92327e52607036a1e42204c9eadcc751d82c github.com
https://github.com/TryGhost/Ghost/releases/tag/v6.54.1 github.comConfirmation
https://github.com/TryGhost/Ghost/security/advisories/GHSA-cjc9-q5gf-327p