CVE-2026-103273

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/TryGhost/Ghost/security/advisories/GHSA-jj85-wvj2-r86m
https://www.vulncheck.com/advisories/ghost-4.3.0-before-6.58.0-incorrect-authorization-via-staff-token

Configurations

No configuration.

History

01 Oct 2026, 11:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-01 11:17

Updated : 2026-10-01 15:06

NVD link : CVE-2026-103273

Mitre link : CVE-2026-103273

CVE.ORG link : CVE-2026-103273

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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