{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "30"
              }
            ]
          }
        ]
      },
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.4.4"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e8e40487ae9438075b5bb52176182c9bf69b7b34"
            }
          ],
          "repo": "https://github.com/khan/simple-markdown",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "simple-markdown.js in Khan Academy simple-markdown before 0.4.4 allows XSS via a data: or vbscript: URI.",
  "id": "CVE-2019-9844",
  "modified": "2026-04-01T23:08:02.083826427Z",
  "published": "2019-04-09T02:29:02.163Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JFLP3KJVSV5VWMNEBRXLGRVYFXOV5KOG/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KZG2I7VH7WLSEUQ77KYP5CRAVFT2RK2U/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O5EFW655O3BXZYAPB65XEREXB2DSNSOT/"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.npmjs.com/package/simple-markdown/v/0.4.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/Khan/simple-markdown/pull/63"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}