PT-2026-83579

CVE-2026-82653

Published

2026-08-30

Updated

2026-09-04

Description by

CVSS 4.0

9.3

Critical

MetricsAV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.8.1

Description A stored cross-site scripting issue exists in the confirmDialog() function. This occurs because unescaped package names and notebook names are interpolated directly into innerHTML assignments. An attacker can submit malicious bazaar packages containing HTML or script payloads in the name field, which then execute in the browser of a user when they uninstall packages or unlock encrypted notebooks.

Recommendations Update to version 3.8.1 or later.

Exploitability

Exploit

Fix

Impacts

Researchers

Alham-Rizvi

Hey-Raghav

Vendors

Affected products

Weakness enumeration

CWE-79: Improper Neutralization of Input During Web Page Generation (\'Cross-site Scripting\')