{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "9.2.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "9cb42f30dcbdc42210d20f72abcbd6c752197968"
            }
          ],
          "repo": "https://github.com/concretecms/concretecms",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "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.",
  "id": "CVE-2023-44763",
  "modified": "2026-03-13T21:56:29.335972429Z",
  "published": "2023-10-10T12:15:09.870Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}