VULNERABILITY INTELLIGENCE
CVE-2026-82653
CVSS score8.9 HIGH
EPSS probability0.37%
CISA KEVNot currently listed
Published2026-08-30
Last modified2026-09-02
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
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.
Weakness classification
- disclosure@vulncheck.com: CWE-79