{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "10.0.0"
              },
              {
                "fixed": "10.2.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "b936bda3da68c86ffe35360410c0844c15e0695d"
            },
            {
              "fixed": "3620738b4994107135057a1a234ff15132b19732"
            }
          ],
          "repo": "https://github.com/dnnsoftware/dnn.platform",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-2rhw-gw3f-477j"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-330"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40306.json"
  },
  "details": "DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. All new installations of DNN 10.x.x - 10.2.1 have the same Host GUID. This does not affect upgrades from 9.x.x. Version 10.2.2 patches the issue.",
  "id": "CVE-2026-40306",
  "modified": "2026-07-08T05:35:57.184084854Z",
  "published": "2026-04-17T21:09:30.317Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40306.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2rhw-gw3f-477j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40306"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "DNN has same HostGUID for all new installs"
}