CVE-2026-82653
HIGH
NVD
CVSS Score
8.9
Severity
HIGH
Published
Aug 30, 2026
Vendor
unknown
Description
SiYuan before v3.8.1 contains a stored cross-site scripting vulnerability in confirmDialog() where unescaped package names and notebook names are interpolated directly into innerHTML assignments. Attackers can submit malicious bazaar packages with HTML/script payloads in the name field that execute in users' browsers when uninstalling packages or unlocking encrypted notebooks.