CVE-2026-70593

MEDIUMCVSS 6.6/10EPSS 0.29%

Last modified

CVE-2026-70593 is a medium-severity vulnerability rated 6.6/10 on the CVSS scale. 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. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6.6/10

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:L

EPSS Probability
0.29%

21.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
TryGhostGhost>= 0.10.0, < 6.54.1

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-70593?
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.
How severe is CVE-2026-70593?
CVE-2026-70593 has a CVSS score of 6.6/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.
How do I fix CVE-2026-70593?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

Are you affected by CVE-2026-70593?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST