CVE-2026-25647 MEDIUM

CVE-2026-25647: Lute has a Stored Cross-Site Scripting (XSS) via Markdown hyperlink

Vendor Siyuan-Note
Product siyuan
Weakness CWE-79 · XSS
Published February 6, 2026
Last update February 9, 2026

CVSS base score

4.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

What the vulnerability does

01Description

Lute is a structured Markdown engine supporting Go and JavaScript. Lute 1.7.6 and earlier (as used in SiYuan before) has a Stored Cross-Site Scripting (XSS) vulnerability in the Markdown rendering engine. An attacker can inject malicious JavaScript into a Markdown text/note. When another user clicks the rendered content, the script executes in the context of their session.

Key dates

02Disclosure timeline

February 6, 2026 CVE published
February 9, 2026 Record updated