Is CVE-2026-105678 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-105678?

CVE-2026-105678 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-105678

Description

Ghost is a Node.js content management system. From 0.5.0 until 6.64.0, staff users with the Editor or Super Editor role were able to assign their own role to Author and Contributor users, despite not having permission to assign that role. This issue is fixed in version 6.64.0.