Description
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.
Published: 2026-10-05
Score: 7.3 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Mon, 05 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Ghost: Stored XSS via Embed Card Previews
Weaknesses CWE-653
CWE-79
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-05T18:48:31.778Z

Reserved: 2026-10-05T16:40:39.612Z

Link: CVE-2026-105643

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-05T19:17:18.900

Modified: 2026-10-05T19:17:18.900

Link: CVE-2026-105643

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T20:30:22Z

Weaknesses
  • CWE-653

    Improper Isolation or Compartmentalization

  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')