What is CVE-2026-103280?

CVE-2026-103280 is a medium-severity vulnerability in Tryghost Ghost, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.3/10. Published 2026-10-01.

How severe is CVE-2026-103280?

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

Vulnerability in Tryghost Ghost

CVE-2026-103280

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.

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-201 — Insertion of Sensitive Information into Sent Data

References

github.com/TryGhost/Ghost/security/advisories/GHSA-5685-hwm9-62cg (vendor-advisory)
www.vulncheck.com/advisories/ghost-0.8.0-before-6.23.0-information-disclosure-v… (third-party-advisory)

Frequently asked questions

What is CVE-2026-103280?: CVE-2026-103280 is a medium-severity vulnerability in Tryghost Ghost, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.3/10. Published 2026-10-01.
How severe is CVE-2026-103280?: Medium severity. CVSS v3 base score is 5.3 out of 10.