Security advisory

{
  "id": "40c3605a0f01f87c48623c5c3f6eebccb427e23017e9e97c0dc434cc148b2fd4",
  "url": "https://osv.dev/vulnerability/CVE-2019-9554",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-9554",
    "summary": "In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.",
    "evidence": "osv:CVE-2019-9554",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-9554",
      "aliases": [
        "CVE-2019-9554"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/craftcms/cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8089a0741d2dbbdf6b8d142b60b8ed3814ffe211"
                },
                {
                  "last_affected": "8089a0741d2dbbdf6b8d142b60b8ed3814ffe211"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:craftcms:craft_cms:3.1.12:*:*:*:pro:*:*:*",
                    "range": [
                      {
                        "introduced": "3.1.12"
                      },
                      {
                        "last_affected": "3.1.12"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.1.12"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-9554.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/nystudio107/craft-seomatic",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b7b5e26b159afe1b023daadc6b8b90c3e1bc2fbe"
                },
                {
                  "last_affected": "b7b5e26b159afe1b023daadc6b8b90c3e1bc2fbe"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:craftcms:craft_cms:3.1.12:*:*:*:pro:*:*:*",
                    "range": [
                      {
                        "introduced": "3.1.12"
                      },
                      {
                        "last_affected": "3.1.12"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.1.12"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-9554.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:37.805330503Z",
      "provider": "osv",
      "references": [
        "https://packetstormsecurity.com/files/151944/Craft-CMS-3.1.12-Pro-Cross-Site-Scripting.html",
        "https://www.exploit-db.com/exploits/46496"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-9554",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434305,
  "published_at": "2019-12-31T17:15:11.223+00:00"
}