Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2023-30538

Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-79 Neutralización incorrecta de la entrada durante la generación de la página web (Cross-site Scripting)
Fecha de publicación:
18/04/2023
Última modificación:
28/04/2023

Descripción

*** Pendiente de traducción *** Discourse is an open source platform for community discussion. Due to the improper sanitization of SVG files, an attacker can execute arbitrary JavaScript on the users’ browsers by uploading a crafted SVG file. This issue is patched in the latest stable and tests-passed versions of Discourse. Users are advised to upgrade. For users unable to upgrade there are two possible workarounds: enable CDN handing of uploads (and ensure the CDN sanitizes SVG files) or disable SVG file uploads by ensuring that the `authorized extensions` site setting does not include `svg` (or reset that setting to the default, by default Discourse doesn't enable SVG uploads by users).

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* 3.0.2 (incluyendo)
cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:* 3.1.0 (excluyendo)
cpe:2.3:a:discourse:discourse:3.1.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.1.0:beta2:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.1.0:beta3:*:*:beta:*:*:*


Referencias a soluciones, herramientas e información