CVE-2026-103286GHSA-pv24-pfvg-vr83
Ghost 2.21.0 before 6.56.0 Privilege Escalation via Notifications
TryGhost GhostApplications & CMS
CVSS
8.5HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.18%Chance of exploitation activity in the next 30 days, higher than 7% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 6.56.0GhostCVE List
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 2.21.0 before 6.56.0 contain a privilege escalation vulnerability in the notifications system that allows low-privilege staff users to escalate to higher-privilege staff roles. Attackers with low-privilege staff access can exploit the notifications system to gain elevated privileges without proper authorization checks.
Text from CVE List
Affected versions 2
- Ghostaffected: 2.21.0 before 6.56.0CVE List
- Ghostunaffected: 6.56.0CVE List