CVE-2026-23852

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 have a stored Cross-Site Scripting XSS vulnerability that allows an attacker to inject arbitrary HTML attributes into the icon attribute of a block via the /api/attr/setBlockAttrs API. The payload is later rendered in the...

CVE-2026-23852

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 have a stored Cross-Site Scripting XSS vulnerability that allows an attacker to inject arbitrary HTML attributes into the icon attribute of a block via the /api/attr/setBlockAttrs API. The payload is later rendered in the...

EUVD-2026-3290

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 have a stored Cross-Site Scripting XSS vulnerability that allows an attacker to inject arbitrary HTML attributes into the icon attribute of a block via the /api/attr/setBlockAttrs API. The payload is later rendered in the...

CVE-2026-23852 SiYuan vulnerable to Stored XSS / RCE via `setBlockAttrs` icon attribute

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 have a stored Cross-Site Scripting XSS vulnerability that allows an attacker to inject arbitrary HTML attributes into the icon attribute of a block via the /api/attr/setBlockAttrs API. The payload is later rendered in the...