GHSA-JJ74-HC2Q-XRVM

Vulnerability from github – Published: 2026-10-07 20:26 – Updated: 2026-10-07 20:26
VLAI
Summary
Ghost: Remote Code Execution via Theme Translation Files
Details

Impact

A vulnerability in how Ghost loads theme translation files allowed an authenticated Administrator to execute arbitrary code on the server via a crafted theme.

Vulnerable versions

This vulnerability is present in Ghost from v6.10.3 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 Miguel Segovia Gil of KPMG, Alemmi, and Tomer-PL 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
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/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": "6.10.3"
            },
            {
              "fixed": "6.64.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-105677"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-829",
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T20:26:08Z",
    "nvd_published_at": "2026-10-05T20:17:14Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nA vulnerability in how Ghost loads theme translation files allowed an authenticated Administrator to execute arbitrary code on the server via a crafted theme.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v6.10.3 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 [Miguel Segovia Gil](https://github.com/msegoviag) of KPMG, [Alemmi](https://github.com/Alemmi), and [Tomer-PL](https://github.com/Tomer-PL) 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-jj74-hc2q-xrvm",
  "modified": "2026-10-07T20:26:09Z",
  "published": "2026-10-07T20:26:08Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-jj74-hc2q-xrvm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105677"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/issues/30635"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/commit/d2f498694be549074dd5817fd0e8a1371b65df02"
    },
    {
      "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:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ghost: Remote Code Execution via Theme Translation Files"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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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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