CVE-2020-8923

Estado: ModificadaMedia (6.1)—

An improper HTML sanitization in Dart versions up to and including 2.7.1 and dev versions 2.8.0-dev.16.0, allows an attacker leveraging DOM Clobbering techniques to skip the sanitization and inject custom html/javascript (XSS). Mitigation: update your Dart SDK to 2.7.2, and 2.8.0-dev.17.0 for the dev version. If you cannot update, we recommend you review the way you use the affected APIs, and pay special attention to cases where user-provided data is used to populate DOM nodes. Consider using Element.innerText or Node.text to populate DOM elements.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Puntuación base: 6.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.32%
Percentil entre todas las CVEs puntuadas: 23
Fecha de la puntuación: 6/10/2026

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)

Dart — Dart Software Development KIT

CWE

CWE-79
CWE-79

Referencias

JSON original (NVD)

Mostrar

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          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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  "published": "2020-03-26T12:15:12.217",
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      "value": "An improper HTML sanitization in Dart versions up to and including 2.7.1 and dev versions 2.8.0-dev.16.0, allows an attacker leveraging DOM Clobbering techniques to skip the sanitization and inject custom html/javascript (XSS). Mitigation: update your Dart SDK to 2.7.2, and 2.8.0-dev.17.0 for the dev version. If you cannot update, we recommend you review the way you use the affected APIs, and pay special attention to cases where user-provided data is used to populate DOM nodes. Consider using Element.innerText or Node.text to populate DOM elements."
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      "value": "Un saneamiento HTML inapropiado en Dart versiones hasta 2.7.1 y las versiones dev 2.8.0-dev.16.0, permite a un atacante aprovechar las técnicas DOM Clobbering para omitir el saneamiento e inyectar html/javascript personalizado (XSS). Mitigación: actualizar su Dart SDK a versión 2.7.2 y a versión 2.8.0-dev.17.0 para la versión de desarrollo. Si no puede actualizar, le recomendamos que revise la manera en que usa las API afectadas y preste especial atención a los casos en los que los datos provistos por el usuario son utilizados para completar los nodos DOM. Considere usar Element.innerText o Node.text para llenar los elementos DOM."
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