CVE-2026-73053
CRITICAL9.0CVSS v3
—CVSS v2
0.28%
EPSS (exploit probability)
CWE-79CWE
Description
SiYuan versions before v3.7.4 contain a cross-site scripting vulnerability in the unicode2Emoji function that fails to sanitize codepoint branch output. Attackers can craft document icons with hex-encoded markup that executes in the renderer with Node integration enabled, achieving arbitrary code execution on the host system.
CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Affected routers (0)
No routers currently mapped to this CVE in our database.