CVE-2026-103269: Ghost 5.3.0 before 6.62.0 Missing Authorization via Post Excerpts

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-01 · updated 2026-10-01
Weakness: CWE-862

Description

Ghost versions 5.3.0 before 6.62.0 contain a missing authorization vulnerability that allows an authenticated site member to read the excerpts of posts they do not have access to (gated content).

Affected products

TryGhost Ghost: from 5.3.0 before 6.62.0 — fixed in 6.62.0

How to fix

Upgrade to a fixed version: TryGhost Ghost 6.62.0. Check the vendor advisory for mitigations.

References

https://github.com/TryGhost/Ghost/security/advisories/GHSA-rv92-9vfp-2826
https://www.vulncheck.com/advisories/ghost-5.3.0-before-6.62.0-missing-authorization-via-post-excerpts

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