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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
TryGhost Ghost unaffected
Version Status Constraints
4.3.0 affected < 6.58.0
6.58.0 unaffected —

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No data.

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Project Subscriptions

Vendors Products
Ghost Subscribe
Ghost Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Thu, 01 Oct 2026 11:00:00 +0000

Type Values Removed Values Added
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.
Title Ghost 4.3.0 before 6.58.0 Incorrect Authorization via Staff Token
First Time appeared Ghost
Ghost ghost
Weaknesses CWE-863
CPEs cpe:2.3:a:ghost:ghost:*:*:*:*:*:*:*:*
Vendors & Products Ghost
Ghost ghost
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-01T13:33:50.258Z

Reserved: 2026-09-30T10:59:00.638Z

Link: CVE-2026-103273

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-01T11:17:22.730

Modified: 2026-10-01T11:17:22.730

Link: CVE-2026-103273

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T13:15:08Z

Weaknesses