CVE-2023-30538

MEDIUM5.4EPSS 0.31%

Stored Cross-site Scripting via improper sanitization of svg files in Discourse

發布日:2024/3/6修改日:2025/10/15

描述

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).

受影響套件(1)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1MEDIUM5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

參考連結(2)