SiYuan <= v3.5.9 contains a reflected XSS caused by insufficient SVG sanitization allowing SVG animation elements to inject executable JavaScript in /api/icon/getDynamicIcon endpoint, letting unauthenticated attackers execute scripts.
id: CVE-2026-31807
info:
name: SiYuan <= v3.5.9 - SVG Animate Element XSS
author: 0x_Akoko
se
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