Security advisory

{
  "id": "5fa3be5409334b3ee764da0e5e6e974117e28beb7e92f6bfb8fc33cbd632d018",
  "url": "https://osv.dev/vulnerability/CVE-2018-1000162",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-1000162",
    "summary": "Parsedown version prior to 1.7.0 contains a Cross Site Scripting (XSS) vulnerability in `setMarkupEscaped` for escaping HTML that can result in JavaScript code execution. This attack appears to be exploitable via specially crafted markdown that allows it to side step HTML escaping by breaking AST boundaries. This vulnerability appears to have been fixed in 1.7.0 and later.",
    "evidence": "osv:CVE-2018-1000162",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-1000162",
      "aliases": [
        "CVE-2018-1000162",
        "GHSA-qgpv-86r3-87fh"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/erusev/parsedown",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6678d59be48c4be64eaca6ce70bea48a09488cc2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:parsedown:parsedown:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.7.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.6.4",
            "1.6.3",
            "1.6.2",
            "1.6.1",
            "1.6.0",
            "1.5.4",
            "1.5.3",
            "1.5.2",
            "1.5.1",
            "1.5.0",
            "1.4.5",
            "1.4.4",
            "1.4.3",
            "1.4.2",
            "1.4.1",
            "1.4.0",
            "1.3.0",
            "1.2.0",
            "1.1.4",
            "1.1.3",
            "1.1.2",
            "1.1.1",
            "1.1.0",
            "1.0.1",
            "1.0.0",
            "1.0.0-rc.5",
            "1.0.0-rc.4",
            "1.0.0-rc.3",
            "1.0.0-rc.2",
            "1.0.0-rc.1",
            "0.9.4",
            "0.9.3",
            "0.9.2",
            "0.9.1",
            "0.9.0",
            "0.8.3",
            "0.8.2",
            "0.8.1",
            "0.8.0",
            "0.7.7",
            "0.7.6",
            "0.7.5",
            "0.7.4",
            "0.7.3",
            "0.7.2",
            "0.7.1",
            "0.7.0",
            "0.6.0",
            "0.5.0",
            "0.4.8",
            "0.4.7",
            "0.4.6",
            "0.4.5",
            "0.4.4",
            "0.4.3",
            "0.4.2",
            "0.4.1",
            "0.4.0",
            "0.3.0",
            "0.2.1",
            "0.2.0",
            "0.1.5",
            "0.1.4",
            "0.1.3",
            "0.1.2",
            "0.1.1",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000162.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:14.834310209Z",
      "provider": "osv",
      "references": [
        "https://github.com/Roave/SecurityAdvisories/issues/44#issuecomment-368594409",
        "https://github.com/erusev/parsedown/pull/495"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-1000162",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381440,
  "published_at": "2018-04-18T19:29:00.583+00:00"
}