medium4.6
CVE-2026-25647
Lute is a structured Markdown engine supporting Go and JavaScript.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| B3log | Siyuan | Version 3.5.4 |