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CVE-2019-20374

Estado: ModificadaCrítica (9.6)—

A mutation cross-site scripting (XSS) issue in Typora through 0.9.9.31.2 on macOS and through 0.9.81 on Linux leads to Remote Code Execution through Mermaid code blocks. To exploit this vulnerability, one must open a file in Typora. The XSS vulnerability is then triggered due to improper HTML sanitization. Given that the application is based on the Electron framework, the XSS leads to remote code execution in an unsandboxed environment.

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)

Typora — Typora

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2019-20374",
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      "value": "A mutation cross-site scripting (XSS) issue in Typora through 0.9.9.31.2 on macOS and through 0.9.81 on Linux leads to Remote Code Execution through Mermaid code blocks. To exploit this vulnerability, one must open a file in Typora. The XSS vulnerability is then triggered due to improper HTML sanitization. Given that the application is based on the Electron framework, the XSS leads to remote code execution in an unsandboxed environment."
    },
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      "value": "Un problema de mutación de tipo cross-site scripting (XSS) en Typora versiones hasta 0.9.9.31.2 en macOS y versiones hasta 0.9.81 en Linux, conlleva a una Ejecución de Código Remota por medio de bloques de código de Mermaid. Para explotar esta vulnerabilidad, uno necesita abrir un archivo en Typora. La vulnerabilidad de tipo XSS es entonces desencadenada debido al saneamiento inapropiado de HTML. Dado que la aplicación es basada en el framework Electron, la vulnerabilidad de tipo XSS conlleva a una ejecución de código remota en un entorno sin sandbox."
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