CVE-2026-103272: Ghost staff enumeration vulnerability in content API

CVE-2026-103272 · Severity: high · CVSS 7.5 · Published 2026-10-01

Ghost, a popular content management system, contains a flaw in its content API that allows attackers to identify staff members and extract sensitive user information without logging in. Attackers exploit differences in how the API responds to requests to determine which staff accounts exist and leak their data, creating a risk of account targeting and unauthorized access to organizational information.

Technologies: TryGhost Ghost. Vendors: TryGhost.

Quick answers

Is CVE-2026-103272 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-103272 being exploited in the wild.
How severe is CVE-2026-103272?
High severity, with a CVSS score of 7.5, published 1 October 2026.
Which products and versions are affected?
TryGhost Ghost 2.10.0 to before 6.63.0.
Is there a fix for CVE-2026-103272?
Yes: fixed in v6.63.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-103272 attacked?
It is attacked over the network.
Am I affected by CVE-2026-103272?
Check whether you run TryGhost Ghost at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: v6.63.0

Technical details

The vulnerability is an observable discrepancy flaw (CWE-203) in Ghost's content API that leaks metadata about staff members through differential API responses. Unauthenticated attackers can enumerate staff accounts and extract sensitive information by observing inconsistencies in API metadata without requiring authentication or user interaction. The fix is available in Ghost v6.63.0.

Affected products

  • TryGhost Ghost 2.10.0 to before 6.63.0

Timeline

  • 2026-09-11: disclosed
  • 2026-10-01: advisory

References

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