Security advisory

{
  "id": "b360c695112da435e3668f447ee4075556902524a19dee978f0313e3d51efaba",
  "url": "https://osv.dev/vulnerability/CVE-2018-18966",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-18966",
    "summary": "osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the \"product\" page. The .htaccess file in catalog/images/ bans the html extension, but Internet Explorer render HTML elements in a .eml file.",
    "evidence": "osv:CVE-2018-18966",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-18966",
      "aliases": [
        "CVE-2018-18966"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/oscommerce/oscommerce2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "94e9e9efe7994bf88d8ade2e64881b4bfe1745d4"
                },
                {
                  "last_affected": "94e9e9efe7994bf88d8ade2e64881b4bfe1745d4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:oscommerce:online_merchant:2.3.4.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.3.4.1"
                      },
                      {
                        "last_affected": "2.3.4.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.3.4.1",
            "v2.3.4.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18966.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:23.032226461Z",
      "provider": "osv",
      "references": [
        "https://github.com/osCommerce/oscommerce2/issues/631"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-18966",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381646,
  "published_at": "2018-11-06T04:29:00.317+00:00"
}