CVE-2026-74800

SiYuan before v3.7.4 serves uploaded HTML files without Content-Disposition or X-Content-Type-Options headers, enabling authenticated attackers to inject stored XSS that runs with full kernel API access when the workspace owner clicks the asset link; upgrade to v3.7.4 or later. No active exploita...

EUVD-2026-60083

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 own...