CVE-2026-103271

high

Description

Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows unauthenticated visitors to access gated post content. Attackers can bypass content restrictions by directly querying the content API to retrieve restricted posts without authentication.

References

https://www.vulncheck.com/advisories/ghost-4.0.0-before-6.63.0-restricted-content-bypass

https://github.com/TryGhost/Ghost/security/advisories/GHSA-rcx7-6m7p-xw5c

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-90664

Details

Source: Mitre, NVD

Published: 2026-10-01

Updated: 2026-10-01

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

CVSS v4

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00379