Security advisory

{
  "id": "27bf49ea59bb5cf992fc3c26f53f30e850e0c261a69e5801fecf4f901148f134",
  "url": "https://osv.dev/vulnerability/CVE-2023-44763",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-44763",
    "summary": "Concrete CMS v9.2.1 is affected by an Arbitrary File Upload vulnerability via a Thumbnail file upload, which allows Cross-Site Scripting (XSS). NOTE: the vendor's position is that a customer is supposed to know that \"pdf\" should be excluded from the allowed file types, even though pdf is one of the allowed file types in the default configuration.",
    "evidence": "osv:CVE-2023-44763",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-44763",
      "aliases": [
        "CVE-2023-44763",
        "GHSA-wrp2-6v6j-hfmg"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/concretecms/concretecms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9cb42f30dcbdc42210d20f72abcbd6c752197968"
                },
                {
                  "last_affected": "9cb42f30dcbdc42210d20f72abcbd6c752197968"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:concretecms:concrete_cms:9.2.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.2.1"
                      },
                      {
                        "last_affected": "9.2.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "9.2.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-44763.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.714335739Z",
      "provider": "osv",
      "references": [
        "https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/44xxx/CVE-2023-44763.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-44763",
        "https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763",
        "https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail"
      ],
      "provider_metadata": {
        "isDisputed": true,
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/44xxx/CVE-2023-44763.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-44763",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 500057,
  "published_at": "2023-10-10T00:00:00+00:00"
}