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CVE PROGRAM SOURCE RECORD9.4 Critical

CVE-2026-74800

SiYuan before v3.7.4 Stored XSS via assets endpoint

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

SiYuan before v3.7.4 fails to set Content-Disposition and X-Content-Type-Options headers when serving arbitrary file assets, allowing stored cross-site scripting attacks. Authenticated attackers can upload HTML files as assets and execute scripts with full kernel API access when the workspace owner opens the asset link.

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 < 3.7.4affected
  • 3.7.4unaffected
pkg:golang/github.com/siyuan-note/siyuan/kernel

References