Feed/CVE-2026-74800
CVE-2026-74800CRITICALCVSS 9.0

CVE-2026-74800

Published Aug 17, 2026·Updated Aug 17, 2026

NVD 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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

References

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