Is CVE-2026-103273 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-103273?

CVE-2026-103273 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-103273

Description

Ghost versions 4.3.0 before 6.58.0 contain an authentication bypass vulnerability where lower-privilege staff users can use staff tokens to bypass post editing restrictions. Attackers with staff credentials can leverage tokens to edit posts beyond their assigned privilege level.