CVE-2026-25647

5.4 mediumEPSS 0.2%

Medium (5.4) in b3log siyuan. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.4 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-02-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

b3log:siyuan

References

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

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