CVE-2026-65606

Not enough EPSS history yet.

SiYuan before v3.7.2 contains a cross-site scripting vulnerability in the siyuan:// protocol handler. When a siyuan://plugins/<name> link references a name that is not an installed plugin, the application opens a custom tab and inserts the link's icon parameter into the tab header via innerHTML without escaping it (app/src/layout/Tab.ts), allowing injection of an <img onerror=...> element. Because the SiYuan Desktop renderer runs with nodeIntegration:true, the injected JavaScript can access Node's require and call require('child_process').execSync(...), escalating the cross-site scripting into arbitrary operating-system command execution.

• github.comhttps://github.com/siyuan-note/siyuan/commit/41f2861c87575ff5ac4b50a0520b1a4fe55b4a70
• github.comhttps://github.com/siyuan-note/siyuan/security/advisories/GHSA-wp64-x7qh-h728
• www.vulncheck.comhttps://www.vulncheck.com/advisories/siyuan-before-cross-site-scripting-to-rce