CVE-2026-50551: SiYuan (<3.7.0) suffers CRITICAL stored XSS in Attribute View, enabling RCE via Electron client. Upgrade to v3.7.0+ to mitigate. No workaround available. Details: https://radar.offseq.com/threat/cve-2026-50551-cwe-79-improper-neutralization-of-i-e91ef5b4d83fcdb8 #OffSeq #XSS #SiYuan #Cybersecurity