Security advisory

{
  "id": "da8a387ffee1752e171bdcb6e9b7878a7d0102acbc8d2be4b8c9d55bad6ff08e",
  "url": "https://osv.dev/vulnerability/CVE-2019-14537",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-14537",
    "summary": "YOURLS through 1.7.3 is affected by a type juggling vulnerability in the api component that can result in login bypass.",
    "evidence": "osv:CVE-2019-14537",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-14537",
      "aliases": [
        "CVE-2019-14537",
        "GHSA-vf23-f26f-mjj9"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/yourls/yourls",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "077018822d3594229daa8343310d0b40804b9ddc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:yourls:yourls:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.7.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.7.3",
            "1.7.1",
            "1.7.2",
            "1.7",
            "1.6",
            "1.5.1",
            "1.5",
            "1.4.3",
            "1.4.2",
            "1.4.1",
            "1.4",
            "1.2",
            "1.1",
            "1.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-14537.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:43.103089793Z",
      "provider": "osv",
      "references": [
        "https://github.com/YOURLS/YOURLS/releases",
        "https://github.com/YOURLS/YOURLS/commits/master",
        "https://github.com/YOURLS/YOURLS/pull/2542",
        "https://github.com/Wocanilo/CVE-2019-14537",
        "https://security-garage.com/index.php/cves/cve-2019-14537-api-authentication-bypass-via-type-juggling"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-14537",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382059,
  "published_at": "2019-08-07T17:15:12.337+00:00"
}