CVE-2026-87814
HIGH
NVD
CVSS Score
7.3
Severity
HIGH
Published
Sep 09, 2026
Vendor
unknown
Description
SiYuan before v3.8.2 contains a stored cross-site scripting vulnerability in the search asset preview feature that fails to escape indexed asset content before inserting it into the DOM using innerHTML. Attackers who can place crafted text assets in a workspace can execute JavaScript in the SiYuan origin when victims preview the assets, enabling authenticated API requests and workspace manipulation.