Security advisory

{
  "id": "301b14681663a3e7adca8076f1d1b6a9af4f597224239587e961011cd18b6f6d",
  "url": "https://osv.dev/vulnerability/CVE-2018-11227",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-11227",
    "summary": "Monstra CMS 3.0.4 and earlier has XSS via index.php.",
    "evidence": "osv:CVE-2018-11227",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-11227",
      "aliases": [
        "CVE-2018-11227"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/monstra-cms/monstra",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "81bad8b6649253bd972ac4158816189d38366216"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:monstra:monstra_cms:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.0.3",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0",
            "v2.2.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-11227.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:17.195435315Z",
      "provider": "osv",
      "references": [
        "https://github.com/monstra-cms/monstra/issues",
        "https://github.com/monstra-cms/monstra/issues/438",
        "https://www.exploit-db.com/exploits/44646"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-11227",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381483,
  "published_at": "2019-07-03T16:15:09.943+00:00"
}