Node.js Content Management System Vulnerability in Ghost by TryGhost
CVE-2026-105651

7.3HIGH

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
5 October 2026

What is CVE-2026-105651?

A security flaw in Ghost, a Node.js based content management system, allows users with staff privileges, including Contributors, to upload non-image files as bookmark icons or thumbnails. This exploit can lead to arbitrary HTML being executed on the site’s domain, potentially compromising the admin sessions of fellow staff users. The issue has been resolved in version 6.64.0, emphasizing the importance of updating to the latest version to mitigate risks.

Affected Version(s)

Ghost >= 5.94.0, < 6.64.0

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/issues/30761
x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/b41fe3f2c399cef0...
x_refsource_MISC

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.