GitHub Advisoryadvisory · npm

GHSA-347q-26qq-h2p6 Ghost: Stored XSS via Bookmark Card Images

HIGH Published 2026-10-07 Modified 2026-10-07 Official page ↗
Aliases
CVE-2026-105651
Ecosystem
npm
Packages
ghost
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Weaknesses
CWE-434, CWE-79
Reviewed
2026-10-07

Affected packages

• npm ghost: >= 5.94.0, < 6.64.0 → fixed in 6.64.0

Description

Impact When creating a bookmark card, Ghost could store non-image files fetched from an external website as bookmark icons or thumbnails. This allowed any staff user, including Contributors, to host arbitrary HTML on the site's domain, possibly resulting in compromise of other staff users' admin sessions. Vulnerable versions This vulnerability is present in Ghost from v5.94.0 up to v6.64.0. Patches v6.64.0 contains a fix for this issue. How to update For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here. If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here. References Ghost thanks Thai Son Dinh of VinSOC Labs and 白墨 for disclosing this vulnerability responsibly. For more information If you have any questions or comments about this advisory, email us at [email protected].

Related

Alias · CVE (1)

  • CVE-2026-105651 Ghost is a Node.js content management system. vulnerability

Weakness · CWE (2)

  • CWE-434 Unrestricted Upload of File with Dangerous Type weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References