All vulnerabilities
CVE-2026-103271GHSA-rcx7-6m7p-xw5c

Ghost 4.0.0 before 6.63.0 Restricted Content Bypass

TryGhost GhostApplications & CMS
Open in ThreatlineRecord JSON
CVSS
8.7High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.38%Chance of exploitation activity in the next 30 days, higher than 30% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6.63.0Fixed versionCVE List
Published1 Oct 2026Updated 6 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 2

  • Ghostaffected: 4.0.0 before 6.63.0CVE List
  • Ghostunaffected: 6.63.0CVE List

References 2