---
id: CVE-2026-103273
title: >-
  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
summary: >-
  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 po…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-863
vendor: TryGhost
product: Ghost
affected:
  - Ghost >= 4.3.0 < 6.58.0
published: '2026-10-01'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T11:17:22.730'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103273'
references:
  - url: 'https://github.com/TryGhost/Ghost/security/advisories/GHSA-jj85-wvj2-r86m'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/ghost-4.3.0-before-6.58.0-incorrect-authorization-via-staff-token
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-01T11:42:53.808Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-01T13:33:41.482510Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.