CVE-2026-25647

Lute has a Stored Cross-Site Scripting (XSS) via Markdown hyperlink

CVSS 4.6 MEDIUMEPSS 0.2%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.6EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

06 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

siyuan-note · siyuan

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References

https://github.com/88250/lute/commit/0118e218916cf0cc7df639b50ce74e0c6c3d1868 https://github.com/siyuan-note/siyuan/security/advisories/GHSA-rw25-98wq-76qv