Security advisory

{
  "id": "b015ef5ad91d55527906645ad6dc4585bb8c486ba0f668611df75e2d6942630b",
  "url": "https://osv.dev/vulnerability/CVE-2019-19903",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-19903",
    "summary": "An issue was discovered in Backdrop CMS 1.14.x before 1.14.2. It doesn't sufficiently filter output when displaying file type descriptions created by administrators. An attacker could potentially craft a specialized description, then have an administrator execute scripting when viewing the list of file types, aka XSS. This vulnerability is mitigated by the fact that an attacker must have a role with the \"Administer file types\" permission.",
    "evidence": "osv:CVE-2019-19903",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-19903",
      "aliases": [
        "CVE-2019-19903"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/backdrop/backdrop",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9d7c5d90930b5b21f3183d035e1cfa9471b8827d"
                },
                {
                  "fixed": "1836c576fe938b5baec7827832a10a6088dbcd20"
                },
                {
                  "introduced": "5e55d3d97c0a7b23a68076d5321212c17da3fbe9"
                },
                {
                  "fixed": "9bb3c616b85ae64ef6490793083ffeabf9182e46"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:backdropcms:backdrop_cms:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.13.0"
                      },
                      {
                        "fixed": "1.13.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:backdropcms:backdrop_cms:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.14.0"
                      },
                      {
                        "fixed": "1.14.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.14.1",
            "1.14.0",
            "1.13.4",
            "1.13.3",
            "1.13.2",
            "1.13.1",
            "1.13.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19903.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:57.435662316Z",
      "provider": "osv",
      "references": [
        "https://backdropcms.org/security/backdrop-sa-core-2019-015"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-19903",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438857,
  "published_at": "2019-12-19T06:15:11.197+00:00"
}