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Vulnerability record · CVE-2026-59833 · published 9 July 2026

CVE-2026-59833: Cross-site scripting vulnerability

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check form action or SVG xlink:href attributes, allowing stored cross-site scripting in document export-preview and Bazaar package README render paths that can execute OS commands in the Electron desktop renderer. This issue is fixed in versions 3.7.1.

8.6 CVSS 4.0 High EPSS 0.53% · top 57.5% CWE-79 · Cross-site scriptingCWE-94 · Code injection Deferred
8.6CVSS 4.0 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
10 Jul 2026Last modified by NVD

Description

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check form action or SVG xlink:href attributes, allowing stored cross-site scripting in document export-preview and Bazaar package README render paths that can execute OS commands in the Electron desktop renderer. This issue is fixed in versions 3.7.1.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/siyuan-note/siyuan/commit/ebe252e61fb93f258d083b9da0fa403679fdf94a
https://github.com/siyuan-note/siyuan/releases/tag/v3.7.1
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-97xv-3v84-h358
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-97xv-3v84-h358

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Source: NIST National Vulnerability Database (record CVE-2026-59833), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.