What is CVE-2026-103283?

CVE-2026-103283 is a high-severity vulnerability in Tryghost Ghost, classified under Insufficient Session Expiration. CVSS score: 8.1/10. Published 2026-10-01.

How severe is CVE-2026-103283?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Tryghost Ghost

CVE-2026-103283

Ghost versions 6.20.0 before 6.57.1 contain a session handling vulnerability that allows authenticated staff users to log in as any other staff user with only the password, bypassing two-factor authentication. Attackers with valid staff credentials can exploit improper session management to impersonate other staff members and gain unauthorized access to administrative functions.

Published 2026-10-01.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-613 — Insufficient Session Expiration

References

github.com/TryGhost/Ghost/security/advisories/GHSA-q55r-w7fh-rmh6 (vendor-advisory)
www.vulncheck.com/advisories/ghost-6.20.0-before-6.57.1-authentication-bypass-v… (third-party-advisory)

Frequently asked questions

What is CVE-2026-103283?: CVE-2026-103283 is a high-severity vulnerability in Tryghost Ghost, classified under Insufficient Session Expiration. CVSS score: 8.1/10. Published 2026-10-01.
How severe is CVE-2026-103283?: High severity. CVSS v3 base score is 8.1 out of 10.