Input Validation Issue in Ghost Comments Feature by Ghost
CVE-2026-103289

7.1HIGH

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
1 October 2026

What is CVE-2026-103289?

Ghost versions prior to 6.44.1 are affected by an input validation flaw in the comments feature. This vulnerability allows authenticated users to gain unauthorized access to comments, leading to the potential disclosure of sensitive and restricted comment data. It is essential for users to update their installations to mitigate this risk and maintain data privacy.

Affected Version(s)

Ghost 5.9.0 < 6.44.1

Ghost 6.44.1

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
vendor-advisory
https://www.vulncheck.com/advisories/ghost-5.9.0-before-6...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

unknownhad
.