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Medium · 6.6 CVE-2026-70593 BIT-ghost-2026-70593EUVD-2026-52977GHSA-cjc9-q5gf-327p

Ghost: Theme Upload Path Traversal

Published Aug 4, 2026 · Updated Aug 5, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
TryGhost Ghost >= 0.10.0, < 6.54.1 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm ghost >= 0.10.0, < 6.54.1 6.54.1 GHSA-cjc9-q5gf-327p

References