---
id: CVE-2026-103286
title: >-
  Ghost versions from 2.21.0 before 6.56.0 contain a privilege escalation
  vulnerability in the notifications system that allows low-privilege staff
  users to escalate to higher-privilege staff roles
summary: >-
  Ghost versions from 2.21.0 before 6.56.0 contain a privilege escalation
  vulnerability in the notifications system that allows low-privilege staff
  users to escalate to higher-privilege staff roles. Attackers with
  low-privilege staff acces…
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N'
cwe:
  - CWE-266
vendor: TryGhost
product: Ghost
affected:
  - Ghost >= 2.21.0 < 6.56.0
published: '2026-10-01'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T11:17:24.880'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103286'
references:
  - url: 'https://github.com/TryGhost/Ghost/security/advisories/GHSA-pv24-pfvg-vr83'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/ghost-2.21.0-before-6.56.0-privilege-escalation-via-notifications
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-01T11:42:53.813Z'
---

## Overview

Ghost versions from 2.21.0 before 6.56.0 contain a privilege escalation vulnerability in the notifications system that allows low-privilege staff users to escalate to higher-privilege staff roles. Attackers with low-privilege staff access can exploit the notifications system to gain elevated privileges without proper authorization checks.

## Remediation

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