{"uuid": "8f0aebee-d666-4b73-ab84-6a63d9bd61b2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-93923", "type": "seen", "source": "https://mastodon.social/users/hugovalters/statuses/117318471411902252", "content": "CVE-2026-93923: stored XSS in SiYuan through 3.8.4, unescaped heading style attributes. Executes in Electron renderer with full system access. CVSS 8.8, no patch yet. Treat untrusted notebooks with caution. https://www.valtersit.com/cve/CVE-2026-93923/ #CVE #infosec #SiYuan", "creation_timestamp": "2026-09-23T04:30:11.442040Z"}