All vulnerabilities
CVE-2026-104412BIT-ghost-2026-104412BIT-ghost-2026-105678CVE-2026-105678GHSA-4pvx-fwjj-8gpc

Ghost 0.5.0 before 6.64.0 Privilege Escalation via Staff Role Assignment

TryGhost GhostnpmApplications & CMS
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.19%Chance of exploitation activity in the next 30 days, higher than 8% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6.64.0Fixed versionCVE List
Published2 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

  • 6.64.0GhostCVE List
  • 6.64.0ghost, npmOSVnpm install ghost@6.64.0

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 0.5.0 before 6.64.0 does not correctly restrict staff role assignment, allowing users with the Editor or Super Editor role to assign their own role to other staff despite lacking permission to do so. An authenticated Editor or Super Editor can promote Author and Contributor users to Editor or Super Editor.

Text from CVE List

Affected versions 3

  • Ghostaffected: 0.5.0 before 6.64.0CVE List
  • Ghostunaffected: 6.64.0CVE List
  • ghost, npmfrom 0.5.0, fixed in 6.64.0OSV

References 2