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CVE-2021-32670

Estado: ModificadaMedia (6.1)—

Datasette es una multiherramienta de código abierto para explorar y publicar datos. La funcionalidad debugging "?_trace=1" de Datasette no escapa correctamente del HTML generado, resultando en una vulnerabilidad de tipo [reflected cross-site scripting](https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks).

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Esta vulnerabilidad es particularmente relevante si su instalación de Datasette incluye funcionalidades autenticadas usando plugins como [datasette-auth-passwords](https://datasette.io/plugins/datasette-auth-passwords) ya que un atacante podría usar la vulnerabilidad para acceder a datos protegidos. Datasette versiones 0.57 y 0.56.1 incluyen parches para este problema. Si ejecutas Datasette detrás de un proxy, puede solucionar este problema rechazando cualquier petición entrante con los parámetros "?_trace=" o "&_trace=" en sus parámetros query string

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Datasette — Datasette

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-32670",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "simonw",
          "product": "datasette",
          "versions": [
            {
              "status": "affected",
              "version": "< 0.56.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-06-07T22:15:07.650",
  "references": [
    {
      "url": "https://datasette.io/plugins/datasette-auth-passwords",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/simonw/datasette/issues/1360",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/simonw/datasette/security/advisories/GHSA-xw7c-jx9m-xh5g",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://pypi.org/project/datasette/",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://datasette.io/plugins/datasette-auth-passwords",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/simonw/datasette/issues/1360",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/simonw/datasette/security/advisories/GHSA-xw7c-jx9m-xh5g",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://pypi.org/project/datasette/",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Datasette es una multiherramienta de código abierto para explorar y publicar datos. La funcionalidad debugging \"?_trace=1\" de Datasette no escapa correctamente del HTML generado, resultando en una vulnerabilidad de tipo [reflected cross-site scripting](https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks). Esta vulnerabilidad es particularmente relevante si su instalación de Datasette incluye funcionalidades autenticadas usando plugins como [datasette-auth-passwords](https://datasette.io/plugins/datasette-auth-passwords) ya que un atacante podría usar la vulnerabilidad para acceder a datos protegidos. Datasette versiones 0.57 y 0.56.1 incluyen parches para este problema. Si ejecutas Datasette detrás de un proxy, puede solucionar este problema rechazando cualquier petición entrante con los parámetros \"?_trace=\" o \"&amp;_trace=\" en sus parámetros query string"
    }
  ],
  "lastModified": "2026-06-17T03:53:23.290",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:datasette:datasette:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "590DF843-9861-4843-84E2-E60641A2738F",
              "versionEndExcluding": "0.56.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}