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CVE-2021-29621

Estado: ModificadaMedia (5.3)—

Flask-AppBuilder is a development framework, built on top of Flask. User enumeration in database authentication in Flask-AppBuilder <= 3.2.3. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Upgrade to version 3.3.0 or higher to resolve.

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 (2)

Apache — AirflowDpgaspar — Flask-appbuilder

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-29621",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
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  "published": "2021-06-07T19:15:07.600",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "security-advisories@github.com",
      "description": [
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          "value": "CWE-203"
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-203"
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      "value": "Flask-AppBuilder is a development framework, built on top of Flask. User enumeration in database authentication in Flask-AppBuilder <= 3.2.3. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Upgrade to version 3.3.0 or higher to resolve."
    },
    {
      "lang": "es",
      "value": "Flask-AppBuilder es un marco de desarrollo, construido sobre Flask. Enumeración de usuarios en la autenticación de la base de datos en Flask-AppBuilder versiones anteriores a 3.2.3 incluyéndola. Permite a un usuario no autenticado enumerar las cuentas existentes cronometrando el tiempo de respuesta del servidor cuando está iniciando la sesión. Actualice a la versión 3.3.0 o superior para resolverlo"
    }
  ],
  "lastModified": "2026-06-17T03:48:02.597",
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