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Cross-site Scripting (XSS) Affecting ghost package, versions <6.64.0-r0

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.24% (14th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-GHOST-20654798
  • published9 Oct 2026
  • disclosed5 Oct 2026
Report a new vulnerability Found a mistake?

Introduced: 5 Oct 2026

NewCVE-2026-105679  (opens in a new tab)
CWE-79  (opens in a new tab)
CWE-434  (opens in a new tab)

How to fix?

Upgrade Minimos:latest ghost to version 6.64.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ghost package and not the ghost package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Ghost is a Node.js content management system. From 6.22.1 until 6.64.0, Ghost restricted the content type used to serve uploaded files to prevent browsers from executing them. On sites using the default local storage adapter, this restriction was not applied, so files uploaded by any staff user were served with a content type derived from their file extension. This could be used to host scripts on the site's domain, possibly resulting in compromise of other staff users' admin sessions. This issue is fixed in version 6.64.0.