Security advisory

{
  "id": "d9eefe3b43639eec31b3062f4b6f62f2705fbe5762d6b235dfcf9ab97c4cd878",
  "url": "https://osv.dev/vulnerability/CVE-2021-32670",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-32670",
    "summary": "Datasette is an open source multi-tool for exploring and publishing data. The `?_trace=1` debugging feature in Datasette does not correctly escape generated HTML, resulting in a [reflected cross-site scripting](https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks) vulnerability. This vulnerability is particularly relevant if your Datasette installation includes authenticated features using plugins such as [datasette-auth-passwords](https://datasette.io/plugins/datasette-auth-passwords) as an attacker could use the vulnerability to access protected data. Datasette 0.57 and 0.56.1 both include patches for this issue. If you run Datasette behind a proxy you can workaround this issue by rejecting any incoming requests with `?_trace=` or `&_trace=` in their query string parameters.",
    "evidence": "osv:CVE-2021-32670",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-32670",
      "aliases": [
        "CVE-2021-32670",
        "GHSA-gff3-739c-gxfq",
        "GHSA-xw7c-jx9m-xh5g",
        "PYSEC-2021-89"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/simonw/datasette",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6536e02f7412591501eeda9b07ef7977246578f2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:datasette:datasette:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.56.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.56",
            "0.55",
            "0.54",
            "0.54a0",
            "0.53",
            "0.52.4",
            "0.52.3",
            "0.52.2",
            "0.52.1",
            "0.52",
            "0.51.1",
            "0.51",
            "0.51a2",
            "0.51a1",
            "0.51a0",
            "0.50.2",
            "0.50.1",
            "0.50",
            "0.50a1",
            "0.50a0",
            "0.49.1",
            "0.49",
            "0.49a1",
            "0.49a0",
            "0.48",
            "0.47.3",
            "0.47.2",
            "0.47.1",
            "0.47",
            "0.46",
            "0.45",
            "0.45a5",
            "0.45a4",
            "0.45a3",
            "0.45a2",
            "0.45a1",
            "0.45a0",
            "0.44",
            "0.43",
            "0.42",
            "0.41",
            "0.40",
            "0.39",
            "0.38",
            "0.37.1",
            "0.37",
            "0.36",
            "0.35",
            "0.34",
            "0.33",
            "0.32",
            "0.31.2",
            "0.31.1",
            "0.31",
            "0.30.2",
            "0.30.1",
            "0.30",
            "0.29.3",
            "0.29.2",
            "0.29.1",
            "0.29",
            "0.28",
            "0.27",
            "0.26.2",
            "0.26.1",
            "0.26",
            "0.25.2",
            "0.25.1",
            "0.25",
            "0.24",
            "0.23.2",
            "0.23.1",
            "0.23",
            "0.22.1",
            "0.22",
            "0.21",
            "0.20",
            "0.19",
            "0.18",
            "0.17",
            "0.16",
            "0.15",
            "0.14",
            "0.13",
            "0.12",
            "0.11",
            "0.10",
            "0.9",
            "0.8",
            "0.7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32670.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:45.308580172Z",
      "provider": "osv",
      "references": [
        "https://datasette.io/plugins/datasette-auth-passwords",
        "https://github.com/simonw/datasette/security/advisories/GHSA-xw7c-jx9m-xh5g",
        "https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks",
        "https://pypi.org/project/datasette/",
        "https://github.com/simonw/datasette/issues/1360"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-32670",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386091,
  "published_at": "2021-06-07T22:15:07.65+00:00"
}