Typebot has Stored XSS via Rating Block Custom Icon that Bypasses isUnsafe Sandbox in Builder Preview

Summary The rating block's custom icon feature accepts arbitrary HTML/SVG via the customIcon.svg field and renders it using Solid's innerHTML directive without any sanitization. When a malicious typebot is imported or crafted by a workspace collaborator, the payload executes in the builder's DOM...

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 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...

PT-2026-3498

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.5.4 Description SiYuan is a personal knowledge management system with a stored Cross-Site Scripting XSS issue. An attacker can inject arbitrary HTML attributes into the icon attribute of a block through the...