Information Disclosure Vulnerability in Ghost by TryGhost
CVE-2026-103275

5.3MEDIUM

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
1 October 2026

What is CVE-2026-103275?

The Ghost CMS platform versions 5.42.2 through 6.58.0 contain a significant vulnerability in its Admin API related to bulk post and page editing and deletion functionality. This vulnerability allows staff-level attackers to exploit filters on restricted fields, such as 'authors.password', leading to the potential exposure of password hashes of other staff users. This issue stems from an incomplete fix for a previous vulnerability, which makes it possible for attackers to conduct offline password-guessing attacks based on the inferred data. It's crucial for all users to update to the latest version to safeguard their systems.

Affected Version(s)

Ghost 5.42.2 < 6.58.0

Ghost 6.58.0

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
vendor-advisory
https://github.com/TryGhost/Ghost/commit/5ef16abe85e9b71a...
patch
https://www.vulncheck.com/advisories/ghost-5.42.2-before-...
third-party-advisory

CVSS V4

Score:
5.3
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

Credit

DonAsako
.