---
id: CVE-2026-103292
title: >-
  Ghost versions from 0.5.3 through versions prior to 6.50.0 fail to sanitize
  the data placed in the JSON-LD HTML tag emitted by the {{ghost_head}} helper
summary: >-
  Ghost versions from 0.5.3 through versions prior to 6.50.0 fail to sanitize
  the data placed in the JSON-LD HTML tag emitted by the {{ghost_head}} helper.
  An authenticated user with limited privileges can inject unescaped content
  that is …
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
vendor: TryGhost
product: Ghost
affected:
  - Ghost >= 0.5.3 < 6.50.0
published: '2026-10-01'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T11:17:25.847'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103292'
references:
  - url: 'https://github.com/TryGhost/Ghost/security/advisories/GHSA-mp9q-4q6m-44f5'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/ghost-0.5.3-before-6.50.0-cross-site-scripting-via-ghost-head
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-01T11:42:53.815Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-01T12:56:49.408634Z'
---

## Overview

Ghost versions from 0.5.3 through versions prior to 6.50.0 fail to sanitize the data placed in the JSON-LD HTML tag emitted by the {{ghost_head}} helper. An authenticated user with limited privileges can inject unescaped content that is rendered as script in the published page, potentially leading to compromise of a staff user's admin session when that user views the affected page.

## Remediation

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