{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.21.0"
              },
              {
                "fixed": "6.56.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "a71f096905b92d5f2a35c7176da674d5ed669966"
            },
            {
              "fixed": "1562834354966ab7e7330fcf25a82e522d4a0a19"
            }
          ],
          "repo": "https://github.com/tryghost/ghost",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-pv24-pfvg-vr83"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-266"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103286.json"
  },
  "details": "Ghost versions from 2.21.0 before 6.56.0 contain a privilege escalation vulnerability in the notifications system that allows low-privilege staff users to escalate to higher-privilege staff roles. Attackers with low-privilege staff access can exploit the notifications system to gain elevated privileges without proper authorization checks.",
  "id": "CVE-2026-103286",
  "modified": "2026-10-03T03:30:29.471262456Z",
  "published": "2026-10-01T10:42:21.119Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103286.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-pv24-pfvg-vr83"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103286"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/ghost-2.21.0-before-6.56.0-privilege-escalation-via-notifications"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Ghost 2.21.0 before 6.56.0 Privilege Escalation via Notifications"
}