Security advisory

{
  "id": "0fbcab6454f1f5500838be3eb5213aeff402a709acbb31eb940c3bc2bc61f5c0",
  "url": "https://osv.dev/vulnerability/CVE-2018-19991",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-19991",
    "summary": "VeryNginx 0.3.3 allows remote attackers to bypass the Web Application Firewall feature because there is no error handler (for get_uri_args or get_post_args) to block the API misuse described in CVE-2018-9230.",
    "evidence": "osv:CVE-2018-19991",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-19991",
      "aliases": [
        "CVE-2018-19991"
      ],
      "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/alexazhou/verynginx",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cc56772325866d713088558f2bb30f540e2b281d"
                },
                {
                  "last_affected": "cc56772325866d713088558f2bb30f540e2b281d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:verynginx_project:verynginx:0.3.3:*:*:*:*:nginx:*:*",
                    "range": [
                      {
                        "introduced": "0.3.3"
                      },
                      {
                        "last_affected": "0.3.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.3.3",
            "v0.3.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19991.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:06.237438722Z",
      "provider": "osv",
      "references": [
        "https://github.com/alexazhou/VeryNginx/issues/218"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-19991",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381276,
  "published_at": "2018-12-10T00:29:00.2+00:00"
}