What is CVE-2026-103274?

CVE-2026-103274 is a medium-severity vulnerability in Tryghost Ghost, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-10-01.

How severe is CVE-2026-103274?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Tryghost Ghost

CVE-2026-103274

Ghost versions 5.3.0 before 6.58.0 fail to properly enforce access controls on comments in private mode. Unauthenticated visitors can read comments that should be restricted, bypassing privacy settings.

Vulnerability class: Broken Access Control

Published 2026-10-01.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Tryghost Ghost

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/TryGhost/Ghost/security/advisories/GHSA-5ppm-p957-x46r (vendor-advisory)
www.vulncheck.com/advisories/ghost-5.3.0-before-6.58.0-unauthenticated-comment-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-103274?: CVE-2026-103274 is a medium-severity vulnerability in Tryghost Ghost, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-10-01.
How severe is CVE-2026-103274?: Medium severity. CVSS v3 base score is 5.3 out of 10.