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CVE-2025-24028

Estado: AnalizadaCrítica (9.6)—

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by differences between how Joplin's HTML sanitizer handles comments and how the browser handles comments. This affects both the Rich Text Editor and the Markdown viewer. However, unlike the Rich Text Editor, the Markdown viewer is `cross-origin isolated`, which prevents JavaScript from directly accessing functions/variables in the toplevel Joplin `window`.

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This issue is not present in Joplin 3.1.24 and may have been introduced in `9b50539`. This is an XSS vulnerability that impacts users that open untrusted notes in the Rich Text Editor. This vulnerability has been addressed in version 3.2.12 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

XSS en sanitizador HTML de Joplin (CWE-79) con vector AV:N UI:R permite inyectar JavaScript en navegador. Acceso a notas y datos locales del usuario.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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      "lang": "en",
      "value": "Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by differences between how Joplin's HTML sanitizer handles comments and how the browser handles comments. This affects both the Rich Text Editor and the Markdown viewer. However, unlike the Rich Text Editor, the Markdown viewer is `cross-origin isolated`, which prevents JavaScript from directly accessing functions/variables in the toplevel Joplin `window`. This issue is not present in Joplin 3.1.24 and may have been introduced in `9b50539`. This is an XSS vulnerability that impacts users that open untrusted notes in the Rich Text Editor. This vulnerability has been addressed in version 3.2.12 and all users are advised to upgrade. There are no known workarounds for this vulnerability."
    },
    {
      "lang": "es",
      "value": "Joplin es una aplicación de código abierto y gratuita para tomar notas y realizar tareas pendientes, que puede gestionar una gran cantidad de notas organizadas en cuadernos. Esta vulnerabilidad se debe a diferencias entre la forma en que el depurador HTML de Joplin gestiona los comentarios y la forma en que el navegador los gestiona. Esto afecta tanto al editor de texto enriquecido como al visor de Markdown. Sin embargo, a diferencia del editor de texto enriquecido, el visor de Markdown está \"aislado en todos los orígenes\", lo que impide que JavaScript acceda directamente a funciones o variables en la \"ventana\" de nivel superior de Joplin. Este problema no está presente en Joplin 3.1.24 y puede haberse introducido en \"9b50539\". Se trata de una vulnerabilidad XSS que afecta a los usuarios que abren notas que no son de confianza en el editor de texto enriquecido. Esta vulnerabilidad se ha solucionado en la versión 3.2.12 y se recomienda a todos los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T08:57:55.153",
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