CVE-2026-103271CWE-863broken-access-control

CVE-2026-103271

High · published October 1, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
30.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
8.7 · 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
EPSS
0.00379 · 30.6th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-10-01T15:17Z
References (2)
https://github.com/TryGhost/Ghost/security/advisories/GHSA-rcx7-6m7p-xw5c · [email protected]https://www.vulncheck.com/advisories/ghost-4.0.0-before-6.63.0-restricted-content-bypass · [email protected]
EPSS history
Timeline
  • 03 OCT 03:41Z
    EPSS moved — → 0%
    epss
  • 01 OCT 10:42Z
    Ghost 4.0.0 before 6.63.0 Restricted Content Bypass
    cvelistv5