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Ghost: Stored XSS via Embed Card Previews

Type: advisorySource: Official CVE List1 source record

Ghost is a Node.js content management system. From version 6.34.0 until 6.67.0, embed cards in the Ghost editor could bypass protections against stored cross-site scripting. Any staff user, including Contributors, could store scripts in post content that ran when another staff user opened the post in the editor, potentially compromising that user’s admin session. Self-hosted sites should leave the new security.embedPreviewUrl configuration option at its default value. This issue is fixed in version 6.67.0.

Announced Source revision 1
Original source ↗

CVE-2026-105643

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-105643

Ghost

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "TryGhost",
    "product": "Ghost",
    "versions": [
      {
        "status": "affected",
        "version": ">= 6.34.0, < 6.67.0"
      }
    ]
  }
]
Related CVEs
CVE-2026-105643

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#9409 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement