CVE-2026-70593
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.
SeverityMedium
CVSS6.6
Exploit probability—
Product
Ghost
PublishedAug 4, 2026
First seenAug 4, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- ghost6.54.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ghostnpm | 0.10.0 ≤ v < 6.54.1 | 6.54.1 |
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