Umbraco CMS vulnerable to Privilege Escalation using Spoofing

{
  "id": "5e10c75db15fa3d5a45fa0bbcabfab005a71d29f0a07cd3612224271611ec42f",
  "url": "https://osv.dev/vulnerability/CVE-2023-49273",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Umbraco CMS vulnerable to Privilege Escalation using Spoofing",
    "summary": "Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, users with low privileges (Editor, etc.) are able to access some unintended endpoints. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue.",
    "evidence": "osv:CVE-2023-49273",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-49273",
      "aliases": [
        "CVE-2023-49273",
        "GHSA-cfr5-7p54-4qg8"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/umbraco/umbraco-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b8db430615d76521a4394a23f9928dc7c12f87bd"
                },
                {
                  "fixed": "365621023a2e12975104de36e1cbec0829d82804"
                },
                {
                  "introduced": "e3f4b86f1c28e0ec30a1ad2a079e308af4cbfbf7"
                },
                {
                  "fixed": "4a7ad4a562e7f07641d4a33cd246509f4ab59cd8"
                },
                {
                  "introduced": "ba724ed97d77b9951a22fe693f9dd3bdd000047c"
                },
                {
                  "fixed": "5dfa76600a9bd673888ff7f2a6ac5c87297cb981"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "8.0.0"
                      },
                      {
                        "fixed": "8.18.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "10.0.0"
                      },
                      {
                        "fixed": "10.8.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "12.0.0"
                      },
                      {
                        "fixed": "12.3.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-49273.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.889441791Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49273.json",
        "https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-cfr5-7p54-4qg8",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-49273"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49273.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-49273",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 493265,
  "published_at": "2023-12-12T19:05:39.361+00:00"
}