{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "8.5.5"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "eb2e83dd9fc3f0eefa748ccc22bc4aed8ef85410"
            }
          ],
          "repo": "https://github.com/concretecms/concretecms",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "The Express Entries Dashboard in Concrete5 8.5.4 allows stored XSS via the name field of a new data object at an index.php/dashboard/express/entries/view/ URI.",
  "id": "CVE-2021-3111",
  "modified": "2026-04-01T23:07:48.859743121Z",
  "published": "2021-01-08T15:15:12.953Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://documentation.concrete5.org/developers/introduction/version-history"
    },
    {
      "type": "ADVISORY",
      "url": "https://documentation.concrete5.org/developers/introduction/version-history/855-release-notes"
    },
    {
      "type": "ADVISORY",
      "url": "http://packetstormsecurity.com/files/161997/Concrete5-8.5.4-Cross-Site-Scripting.html"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/Quadron-Research-Lab/CVE/blob/main/CVE-2021-3111.pdf"
    },
    {
      "type": "EVIDENCE",
      "url": "http://packetstormsecurity.com/files/161600/Concrete5-8.5.4-Cross-Site-Scripting.html"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}