GHSA-V6Q3-XQXM-6F5V

Vulnerability from github – Published: 2026-10-07 20:26 – Updated: 2026-10-07 20:26
VLAI
Summary
Ghost: Invite Token Disclosure in Ghost Admin API
Details

Impact

Staff users with permission to view staff invites were able to discover the secret token of pending invites, including invites for roles with higher privileges than their own. This could allow a staff user to escalate their privileges by accepting a pending invite.

Vulnerable versions

This vulnerability is present in Ghost from v4.39.0 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 CoryRoo, 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
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "ghost"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.39.0"
            },
            {
              "fixed": "6.64.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-105675"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203",
      "CWE-943"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T20:26:19Z",
    "nvd_published_at": "2026-10-05T20:17:14Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nStaff users with permission to view staff invites were able to discover the secret token of pending invites, including invites for roles with higher privileges than their own. This could allow a staff user to escalate their privileges by accepting a pending invite.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v4.39.0 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 [CoryRoo](https://github.com/CoryRoo), 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-v6q3-xqxm-6f5v",
  "modified": "2026-10-07T20:26:19Z",
  "published": "2026-10-07T20:26:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-v6q3-xqxm-6f5v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105675"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/pull/30760"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/commit/4fb587e4d49667f929b87f7d6a873ae5e9cc087f"
    },
    {
      "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:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ghost: Invite Token Disclosure in Ghost Admin API"
}



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Nomenclature

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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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