CVE-2026-54067 SiYuan: Stored XSS to RCE via CSS-snippet <style> breakout in renderSnippet()

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, CSS snippet body containing breaks out of its surrounding tag when renderSnippet interpolates it via insertAdjacentHTML. A payload like runs arbitrary JavaScript in the renderer. On Electron desktop builds the renderer...