CVE-2026-66395 — SiYuan Desktop before v3.7.2 Reflected XSS to RCE via siyuan Protocol
SiYuan desktop before v3.7.2 contains a reflected cross-site scripting vulnerability in the bazaar plugin readme handler that allows attackers to execute arbitrary code by craft…
Published: 2026-07-27 · CVSS: 9.4 · CVSS 4.0
SiYuan desktop before v3.7.2 contains a reflected cross-site scripting vulnerability in the bazaar plugin readme handler that allows attackers to execute arbitrary code by crafting a malicious siyuan:// deep link. Attackers can inject HTML payloads via the plugin name parameter that execute with full Node.js access through insertAdjacentHTML rendering in an insecurely configured Electron renderer.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7