What is CVE-2026-104418?

CVE-2026-104418 is a high-severity vulnerability in Tryghost Ghost, classified under Path Traversal. CVSS score: 7.2/10. Published 2026-10-02.

How severe is CVE-2026-104418?

High severity. CVSS v3 base score is 7.2 out of 10.

Path Traversal in Tryghost Ghost

CVE-2026-104418

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.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-10-02.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Tryghost Ghost

Weakness classification (CWE)

CWE-22 — Path Traversal

References

github.com/TryGhost/Ghost/security/advisories/GHSA-jj74-hc2q-xrvm (vendor-advisory)
www.vulncheck.com/advisories/ghost-from-6.10.3-before-6.64.0-rce-via-theme-tran… (third-party-advisory)

Frequently asked questions

What is CVE-2026-104418?: CVE-2026-104418 is a high-severity vulnerability in Tryghost Ghost, classified under Path Traversal. CVSS score: 7.2/10. Published 2026-10-02.
How severe is CVE-2026-104418?: High severity. CVSS v3 base score is 7.2 out of 10.