Access Control Weakness in Ghost Blogging Platform by Ghost Foundation
CVE-2026-103274

6.9MEDIUM

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
1 October 2026

What is CVE-2026-103274?

Versions of the Ghost blogging platform from 5.3.0 until 6.58.0 have a significant access control vulnerability that permits unauthenticated users to access private comments. This flaw undermines configured privacy settings, enabling unauthorized parties to view comments intended only for registered users. This presents potential risks to user confidentiality and data integrity. Immediate action is advised to secure deployments against unauthorized access.

Affected Version(s)

Ghost 5.3.0 < 6.58.0

Ghost 6.58.0

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
vendor-advisory
https://www.vulncheck.com/advisories/ghost-5.3.0-before-6...
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.