{
  "schema_version": "1.4.0",
  "id": "GHSA-3xg5-6c3j-vp8x",
  "modified": "2024-10-16T21:28:22Z",
  "published": "2021-08-30T16:23:34Z",
  "aliases": [
    "CVE-2020-18703"
  ],
  "summary": "Improper Restriction of XML External Entity Reference in Quokka",
  "details": "XML External Entities (XXE) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the component 'quokka/utils/atom.py'.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "quokka"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.4.0"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-18703"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rochacbruno/quokka/issues/676"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/quokka/PYSEC-2021-144.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/quokkaproject/quokka"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "severity": "CRITICAL",
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-26T17:42:07Z",
    "nvd_published_at": "2021-08-16T18:15:00Z"
  }
}