CVE-2026-104418: Ghost from 6.10.3 before 6.64.0 RCE via Theme Translation Files

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-02 · updated 2026-10-02
Weakness: CWE-22

Description

Ghost from 6.10.3 before 6.64.0 contains a remote code execution vulnerability that allows authenticated administrators to run code by abusing theme translation file loading. Attackers with administrator access can upload a crafted theme containing malicious translation files to execute arbitrary code on the Ghost server.

Affected products

TryGhost Ghost: from 6.10.3 before 6.64.0 — fixed in 6.64.0

How to fix

Upgrade to a fixed version: TryGhost Ghost 6.64.0. Check the vendor advisory for mitigations.

References

https://github.com/TryGhost/Ghost/security/advisories/GHSA-jj74-hc2q-xrvm
https://www.vulncheck.com/advisories/ghost-from-6.10.3-before-6.64.0-rce-via-theme-translation-files

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