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

Ghost: Editors Could Promote Staff Users to Their Own Role

TryGhost ghostnpmApplications & CMS
Open in ThreatlineRecord JSON
CVSS
4.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 8% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6.64.0Fixed versionGitHub
Published5 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

  • 6.64.0ghost, npmGitHubnpm 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

Impact

Staff users with the Editor or Super Editor role were able to assign their own role to Author and Contributor users, despite not having permission to assign that role.

Vulnerable versions

This vulnerability is present in Ghost from v0.5.0 up to v6.64.0.

Patches

v6.64.0 contains a fix for this issue.

How to update

For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.

If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.

References

Ghost thanks SecBuddyF of Tencent KeenLab, Santosh Kumar Puppala, Pedro Pinho, and Nhat Anh Vu for disclosing this vulnerability responsibly.

For more information

If you have any questions or comments about this advisory, email us at [security@ghost.org](mailto:security@ghost.org).

Text from GitHub Advisory Database

Affected versions 3

  • ghost, npm>= 0.5.0, < 6.64.0GitHub
  • Ghostaffected: >= 0.5.0, < 6.64.0CVE List
  • ghost, npmfrom 0.5.0, fixed in 6.64.0OSV

References 7