Description
Ghost is a Node.js content management system. From 4.22.0 until 6.65.0, SVG media thumbnails and SVG images uploaded with a non-SVG file extension were stored without sanitization. This allowed any staff user, including Contributors, to host scripts on the site's domain, possibly resulting in compromise of other staff users' admin sessions. This issue is fixed in version 6.65.0.
Published: 2026-10-05
Score: 7.3 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Mon, 05 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Description Ghost is a Node.js content management system. From 4.22.0 until 6.65.0, SVG media thumbnails and SVG images uploaded with a non-SVG file extension were stored without sanitization. This allowed any staff user, including Contributors, to host scripts on the site's domain, possibly resulting in compromise of other staff users' admin sessions. This issue is fixed in version 6.65.0.
Title Ghost: Stored XSS via SVG Uploads Bypassing Sanitization
Weaknesses CWE-434
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

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-05T19:05:37.839Z

Reserved: 2026-10-05T16:40:39.613Z

Link: CVE-2026-105649

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-05T20:17:13.613

Modified: 2026-10-05T20:17:13.613

Link: CVE-2026-105649

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-434

    Unrestricted Upload of File with Dangerous Type

  • CWE-79

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