cvedb.io
CVE-2026-23847
MEDIUM · CVSS 6.1
EPSS exploitation probability: 0%
Published 2026-01-19T20:15:49.393 · Last modified 2026-06-17T10:22:11.897

Summary

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 are vulnerable to reflected cross-site scripting in /api/icon/getDynamicIcon due to unsanitized SVG input. The endpoint generates SVG images for text icons (type=8). The content query parameter is inserted directly into the SVG <text> tag without XML escaping. Since the response Content-Type is image/svg+xml, injecting unescaped tags allows breaking the XML structure and executing JavaScript. Version 3.5.4 patches the issue.]

Affected products

b3log — siyuan

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.