CVE-2026-104412

MEDIUM 4.3

Ghost 0.5.0 before 6.64.0 Privilege Escalation via Staff Role Assignment

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-269
Vendor	tryghost
Product	ghost
Published	Oct 2, 2026

Stay Ahead of the Next One

Get instant alerts for tryghost ghost

Be the first to know when new medium vulnerabilities affecting tryghost ghost are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

TryGhost / Ghost

0.5.0 < 6.64.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/TryGhost/Ghost/security/advisories/GHSA-4pvx-fwjj-8gpc vulncheck.com: https://www.vulncheck.com/advisories/ghost-0.5.0-before-6.64.0-privilege-escalation-via-staff-role-assignment

Credits

🔍 Santoshkumarpuppala 🔍 nhattanhh