{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "mithril"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "mithril"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-08-31T18:47:02Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "Affected versions of `mithril`are vulnerable to prototype pollution. The function `parseQueryString` may allow a malicious user to modify the prototype of `Object`, causing the addition or modification of an existing property that will exist on all objects. A payload such as `__proto__%5BtoString%5D=123` in the query string would change the `toString()` function to `123`.\n\n\n\n## Recommendation\n\nIf you are using mithril 2.x, upgrade to version 2.0.2 or later.\nIf you are using mithril 1.x, upgrade to version 1.1.7 or later.",
  "id": "GHSA-c3px-v9c7-m734",
  "modified": "2020-08-31T18:47:02Z",
  "published": "2020-09-03T19:04:39Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/1094"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Prototype Pollution in mithril"
}