Privilege escalation in Tryghost Ghost
CVE-2026-104412
Ghost 0.5.0 before 6.64.0 does not correctly restrict staff role assignment, allowing users with the Editor or Super Editor role to assign their own role to other staff despite lacking permission to do so. An authenticated Editor or Super Editor can promote Author and Contributor users to Editor or Super Editor.
Vulnerability class: Privilege Escalation
Published .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
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
Weakness classification (CWE)
References
- github.com/TryGhost/Ghost/security/advisories/GHSA-4pvx-fwjj-8gpc (vendor-advisory)
- www.vulncheck.com/advisories/ghost-0.5.0-before-6.64.0-privilege-escalation-via… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-104412?
- CVE-2026-104412 is a medium-severity vulnerability in Tryghost Ghost, classified under Improper Privilege Management. CVSS score: 4.3/10. Published 2026-10-02.
- How severe is CVE-2026-104412?
- Medium severity. CVSS v3 base score is 4.3 out of 10.