CVE-2026-65606 | BDVDB-2026-352139 Detail

Description#

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.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-07-23Record published in the CVE List.
2. Version 22026-09-17Most recent update recorded in the CVE List.