GHSA-4PVX-FWJJ-8GPC

Vulnerability from github – Published: 2026-10-07 20:26 – Updated: 2026-10-07 20:26
VLAI
Summary
Ghost: Editors Could Promote Staff Users to Their Own Role
Details

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.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "ghost"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.5.0"
            },
            {
              "fixed": "6.64.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-105678"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T20:26:03Z",
    "nvd_published_at": "2026-10-05T20:17:14Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nStaff 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.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v0.5.0 up to v6.64.0.\n\n### Patches\n\nv6.64.0 contains a fix for this issue.\n\n### How to update\n\nFor self-hosters using Docker, find [Docker\u0027s official Ghost image here](https://hub.docker.com/_/ghost). Updating a Docker-based Ghost instance [is documented here](https://docs.ghost.org/install/docker#updating-ghost). \n\nIf your Ghost is a Ghost-CLI install see our documentation on [updating it to the latest version here](https://docs.ghost.org/update). \n\n### References\n\nGhost thanks [SecBuddyF](https://github.com/SecBuddyF) of [Tencent KeenLab](https://github.com/KeenSecurityLab), [Santosh Kumar Puppala](https://github.com/Santoshkumarpuppala), Pedro Pinho, and [Nhat Anh Vu](https://github.com/nhattanhh) for disclosing this vulnerability responsibly.\n\n### For more information\n\nIf you have any questions or comments about this advisory, email us at [security@ghost.org](mailto:security@ghost.org).",
  "id": "GHSA-4pvx-fwjj-8gpc",
  "modified": "2026-10-07T20:26:03Z",
  "published": "2026-10-07T20:26:03Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-4pvx-fwjj-8gpc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105678"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/issues/30764"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/pull/30764"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/commit/99c5642b9bb481df4811a004a6f19d6143ed9aaf"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/TryGhost/Ghost"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/releases/tag/v6.64.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ghost: Editors Could Promote Staff Users to Their Own Role"
}



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Nomenclature

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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