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CVE-2023-44390

Estado: ModificadaMedia (6.1)—

HtmlSanitizer is a .NET library for cleaning HTML fragments and documents from constructs that can lead to XSS attacks. The vulnerability occurs in configurations where foreign content is allowed, i.e. either `svg` or `math` are in the list of allowed elements. In the case an application sanitizes user input with a vulnerable configuration, an attacker could bypass the sanitization and inject arbitrary HTML, including JavaScript code. Note that in the default configuration the vulnerability is not present. The vulnerability has been fixed in versions 8.0.723 and 8.1.722-beta (preview version).

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)

Htmlsanitizer Project — Htmlsanitizer

CWE

Referencias

JSON original (NVD)

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          "timestamp": "2024-09-19T17:31:53.657681Z"
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      "value": "HtmlSanitizer is a .NET library for cleaning HTML fragments and documents from constructs that can lead to XSS attacks. The vulnerability occurs in configurations where foreign content is allowed, i.e. either `svg` or `math` are in the list of allowed elements. In the case an application sanitizes user input with a vulnerable configuration, an attacker could bypass the sanitization and inject arbitrary HTML, including JavaScript code. Note that in the default configuration the vulnerability is not present. The vulnerability has been fixed in versions 8.0.723 and 8.1.722-beta (preview version)."
    },
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      "lang": "es",
      "value": "HtmlSanitizer es una librería .NET para limpiar fragmentos y documentos HTML de construcciones que pueden provocar ataques XSS. La vulnerabilidad ocurre en configuraciones donde se permite contenido externo, es decir, \"svg\" o \"math\" están en la lista de elementos permitidos. En el caso de que una aplicación sanitice la entrada del usuario con una configuración vulnerable, un atacante podría eludir la sanitización e inyectar HTML arbitrario, incluido código JavaScript. Tenga en cuenta que en la configuración predeterminada la vulnerabilidad no está presente. La vulnerabilidad se ha solucionado en las versiones 8.0.723 y 8.1.722-beta (versión preliminar)."
    }
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  "lastModified": "2026-06-17T06:27:32.930",
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