CVE-2026-103280: Ghost 0.8.0 before 6.23.0 Information Disclosure via Setup Endpoint

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-201

Description

Ghost from version 0.8.0 before 6.23.0 contains an information disclosure vulnerability in its setup endpoint: the endpoint responds to unauthenticated requests with the site owner's email address, allowing any remote visitor to obtain it.

Affected products

TryGhost Ghost: from 0.8.0 before 6.23.0 — fixed in 6.23.0

How to fix

Upgrade to a fixed version: TryGhost Ghost 6.23.0. Check the vendor advisory for mitigations.

References

https://github.com/TryGhost/Ghost/security/advisories/GHSA-5685-hwm9-62cg
https://www.vulncheck.com/advisories/ghost-0.8.0-before-6.23.0-information-disclosure-via-setup-endpoint

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