Moderate severityNVD Advisory· Published Aug 4, 2026
Ghost: Theme Upload Path Traversal
CVE-2026-70593
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
ghostnpm | >= 0.10.0, < 6.54.1 | 6.54.1 |
Affected products
1Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-cjc9-q5gf-327pghsaADVISORY
- github.com/TryGhost/Ghost/commit/fbaa92327e52607036a1e42204c9eadcc751d82cghsax_refsource_MISCWEB
- github.com/TryGhost/Ghost/releases/tag/v6.54.1ghsax_refsource_MISCWEB
- github.com/TryGhost/Ghost/security/advisories/GHSA-cjc9-q5gf-327pghsax_refsource_CONFIRMWEB
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