Vulnerability · Published Feb 6, 2026 · Assigned by GitHub_M

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

Medium 4.6

In plain English

A medium-severity cross-site scripting in siyuan from siyuan-note. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)4.6Medium

Exploit odds (30 days)0.2%top 85.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 (as reported)

Vendor	Product	Versions
siyuan-note	siyuan	< 3.5.5

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

References

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