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CVE PROGRAM SOURCE RECORD8.5 High

CVE-2026-100643

SiYuan before v3.8.4 Stored XSS via Attribute View textarea

Description

SiYuan versions before v3.8.4 fail to properly escape four stored Attribute View values in textarea elements, allowing authenticated attackers to inject JavaScript by modifying field descriptions, template sources, select option descriptions, or footer calculation templates. Attackers can execute stored JavaScript when other users open affected database menus, and in the Electron desktop app with nodeIntegration enabled, this leads to command execution with SiYuan process privileges.

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

  • 2.10.8 to < 3.8.4affected
  • 3.8.4unaffected
pkg:golang/github.com/siyuan-note/siyuan/kernel

References