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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-66396

SiYuan before v3.7.2 Stored XSS to RCE via title-img IAL

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

siyuan-note siyuan

Default version status: unaffected

  • 0 to < 3.7.2affected
  • 3.7.2unaffected
pkg:golang/github.com/siyuan-note/siyuan

References