CVE-2023-37898

{"id": "CVE-2023-37898", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.3, "exploitabilityScore": 2.3}]}, "published": "2024-06-21T20:15:11.583", "references": [{"url": "https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#sandbox", "source": "security-advisories@github.com"}, {"url": "https://github.com/laurent22/joplin/security/advisories/GHSA-hjmq-3qh4-g2r8", "source": "security-advisories@github.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Joplin is a free, open source note taking and to-do application. A Cross-site Scripting (XSS) vulnerability allows an untrusted note opened in safe mode to execute arbitrary code. `packages/renderer/MarkupToHtml.ts` renders note content in safe mode by surrounding it with <pre> and </pre>, without escaping any interior HTML tags. Thus, an attacker can create a note that closes the opening <pre> tag, then includes HTML that runs JavaScript. Because the rendered markdown iframe has the same origin as the toplevel document and is not sandboxed, any scripts running in the preview iframe can access the top variable and, thus, access the toplevel NodeJS `require` function. `require` can then be used to import modules like fs or child_process and run arbitrary commands. This issue has been addressed in version 2.12.9 and all users are advised to upgrade. There are no known workarounds for this vulnerability."}, {"lang": "es", "value": "Joplin es una aplicaci\u00f3n gratuita y de c\u00f3digo abierto para tomar notas y tareas pendientes. Una vulnerabilidad de Cross-Site Scripting (XSS) permite que una nota que no es de confianza abierta en modo seguro ejecute c\u00f3digo arbitrario. `packages/renderer/MarkupToHtml.ts` muestra el contenido de la nota en modo seguro rode\u00e1ndolo con <pre> y </pre>, sin escapar de ninguna etiqueta HTML interior. Por lo tanto, un atacante puede crear una nota que cierre la etiqueta <pre> de apertura y luego incluya HTML que ejecute JavaScript. Debido a que el iframe de rebajas renderizado tiene el mismo origen que el documento de nivel superior y no est\u00e1 en un espacio aislado, cualquier script que se ejecute en el iframe de vista previa puede acceder a la variable superior y, por lo tanto, acceder a la funci\u00f3n `require` de NodeJS de nivel superior. Luego, `require` se puede usar para importar m\u00f3dulos como fs o child_process y ejecutar comandos arbitrarios. Este problema se solucion\u00f3 en la versi\u00f3n 2.12.9 y se recomienda a todos los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad.</pre>"}], "lastModified": "2024-06-24T12:57:36.513", "sourceIdentifier": "security-advisories@github.com"}