Security advisory

{
  "id": "e213d471b8465bc1098d38562caef1e459c616bc1883f9938434747d28420e4f",
  "url": "https://osv.dev/vulnerability/CVE-2021-31858",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-31858",
    "summary": "DotNetNuke (DNN) 9.9.1 CMS is vulnerable to a Stored Cross-Site Scripting vulnerability in the user profile biography section which allows remote authenticated users to inject arbitrary code via a crafted payload.",
    "evidence": "osv:CVE-2021-31858",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-31858",
      "aliases": [
        "CVE-2021-31858"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/dnnsoftware/dnn.platform",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "4141ee8b9f9d9707b02fda0bc6005ef521832702"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "9.10.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v9.10.2",
            "v9.10.1",
            "v9.10.0",
            "v9.9.1",
            "v9.9.0",
            "v9.8.1",
            "v9.8.0",
            "v9.7.2",
            "v9.7.1",
            "v9.7.0",
            "v9.6.2",
            "v9.6.1",
            "v9.6.0",
            "v9.5.0",
            "v9.5.0-rc2",
            "v9.4.4",
            "v9.4.3-rc1",
            "v9.4.3",
            "v9.4.2",
            "v9.4.2-rc1",
            "v9.4.1-rc1",
            "v9.4.1",
            "v9.4.0",
            "v9.4.0-rc1",
            "v9.4.0-rc0",
            "v9.3.0-rc1",
            "v9.3.0-rc0",
            "v9.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31858.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:54.961690523Z",
      "provider": "osv",
      "references": [
        "https://labs.integrity.pt/advisories/cve-2021-31858/",
        "https://www.dnnsoftware.com/community/security/security-center"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-31858",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438320,
  "published_at": "2022-07-20T13:15:08.16+00:00"
}