cvedb.io
CVE-2026-66396
HIGH · CVSS 8.4
EPSS exploitation probability: 0%
Published 2026-07-27T16:18:12.220 · Last modified 2026-07-27T18:17:02.170

Summary

SiYuan before v3.7.2 fails to escape the title-img Individual Attribute List value when rendering Gallery and Kanban cover images, allowing stored cross-site scripting via unescaped style attribute interpolation. Attackers with editor permissions can inject onload handlers that execute arbitrary code in the Electron renderer with full Node.js access when victims open affected documents.

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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.