GHSA-9M84-WC28-W895

Vulnerability from github – Published: 2026-03-05 00:42 – Updated: 2026-03-09 15:49
VLAI?
Summary
Ghost has incomplete CSRF protections around OTC use
Details

Impact

Incomplete CSRF protections around /session/verify made it possible to use OTCs in login sessions different from the requesting session. In some scenarios this might have made it easier for phishers to take over a Ghost site.

Vulnerable versions

This vulnerability is present in Ghost from v5.101.6 up to v6.19.2.

Patches

v6.19.3 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 a project's Ghost is a Ghost-CLI install see the documentation on updating it to the latest version here.

For more information

If there are any questions or comments about this advisory, send an email to security@ghost.org.

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 6.19.2"
      },
      "package": {
        "ecosystem": "npm",
        "name": "ghost"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.101.6"
            },
            {
              "fixed": "6.19.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-29784"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-352"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-05T00:42:55Z",
    "nvd_published_at": "2026-03-07T16:15:55Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nIncomplete CSRF protections around `/session/verify` made it possible to use OTCs in login sessions different from the requesting session. In some scenarios this might have made it easier for phishers to take over a Ghost site. \n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v5.101.6 up to v6.19.2.\n\n### Patches\n\nv6.19.3 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 a project\u0027s Ghost is a Ghost-CLI install see the documentation on [updating it to the latest version here](https://docs.ghost.org/update). \n\n### For more information\n\nIf there are any questions or comments about this advisory, send an email to [security@ghost.org](mailto:security@ghost.org).",
  "id": "GHSA-9m84-wc28-w895",
  "modified": "2026-03-09T15:49:52Z",
  "published": "2026-03-05T00:42:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-9m84-wc28-w895"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29784"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TryGhost/Ghost/commit/ec065a774fa125953d2aa644a59cd8990329e0a0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/TryGhost/Ghost"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ghost has incomplete CSRF protections around OTC use"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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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