High severity · published Oct 1, 2026
CVE-2026-103271
Ghost 4.0.0 before 6.63.0 Restricted Content Bypass
7.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GH
Ghost · TryGhost
4.0.0 before 6.63.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-103271
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-103271
vendor-advisory
https://github.com/TryGhost/Ghost/security/advisories/GHSA-rcx7-6m7p-xw5c
third-party-advisory
https://www.vulncheck.com/advisories/ghost-4.0.0-before-6.63.0-restricted-content-bypass
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