SiYuan: Cross-Origin RCE via Permissive CORS Policy and JavaScript Snippet Injection
SiYuan is a personal knowledge management system. Prior to version 3.6.2, a malicious website can achieve Remote Code Execution (RCE) on any desktop running SiYuan by exploiting the permissive CORS policy (Access-Control-Allow-Origin: * + Access-Control-Allow-Private-Network: true) to inject a JavaScript snippet via th…
Severity critical: primary CNA CVSS 9.7 v3.1 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-03-31T21:45:17.081Z. Updated 2026-04-01T15:52:56.545Z.