Privilege Escalation Vulnerability in Ghost CMS by TryGhost
CVE-2026-105675

7.5HIGH

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
5 October 2026

What is CVE-2026-105675?

In versions 4.39.0 through 6.64.0 of Ghost, a vulnerability existed that allowed staff users with permissions to view staff invites to access secret tokens of pending invites. This exposure could lead to privilege escalation, enabling unauthorized users to accept invites that granted higher-level access than their current roles. The issue was remediated in version 6.64.0, emphasizing the importance of prompt updates to secure the system.

Affected Version(s)

Ghost >= 4.39.0, < 6.64.0

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/pull/30760
x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/4fb587e4d49667f9...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.