Skip to content
OpenAdvisories
High · 7.3 CVE-2026-87813 EUVD-2026-74839GHSA-x62c-gcj4-v66g

SiYuan before v3.8.2 Stored XSS via unescaped asset filenames

Published Sep 9, 2026 · Updated Sep 9, 2026 · Assigned by VulnCheck

Description

SiYuan before v3.8.2 contains a stored cross-site scripting vulnerability in the Search Assets result list where asset filenames are interpolated into HTML without escaping. Authenticated attackers can craft asset filenames containing malicious markup that executes JavaScript in the victim's browser when searching assets, enabling same-origin API requests and application state manipulation.

Affected products

VendorProductAffectedFixed
siyuan-note siyuan < 3.8.2 3.8.2

References