PT-2026-29401

Name of the Vulnerable Software and Affected Versions: SiYuan versions 3.6.0 through 3.6.1 Description: SiYuan is a personal knowledge management system. The SanitizeSVG function, introduced in version 3.6.0 to address XSS in the unauthenticated /api/icon/getDynamicIcon endpoint, can be bypassed ...

SUSE CVE-2026-32940

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, SanitizeSVG has an incomplete blocklist - it blocks data:text/html and data:image/svg+xml in href attributes but misses data:text/xml and data:application/xml, both of which can render SVG with JavaScript execution. Th...

CVE-2026-31809

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer SanitizeSVG checks href attributes for the javascript: prefix using strings.HasPrefix. However, inserting ASCII tab , newline , or carriage return characters inside the javascript: string bypasses this prefi...

CVE-2026-32940

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, SanitizeSVG has an incomplete blocklist — it blocks data:text/html and data:image/svg+xml in href attributes but misses data:text/xml and data:application/xml, both of which can render SVG with JavaScript execution. Th...

SUSE CVE-2026-29183

SiYuan is a personal knowledge management system. Prior to version 3.5.9, an unauthenticated reflected XSS vulnerability exists in the dynamic icon API endpoint "GET /api/icon/getDynamicIcon" when type=8, attacker-controlled content is embedded into SVG output without escaping. Because the endpoi...

SUSE CVE-2026-31809

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer SanitizeSVG checks href attributes for the javascript: prefix using strings.HasPrefix. However, inserting ASCII tab , newline , or carriage return characters inside the javascript: string bypasses this prefi...

CVE-2026-32940

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, SanitizeSVG has an incomplete blocklist — it blocks data:text/html and data:image/svg+xml in href attributes but misses data:text/xml and data:application/xml, both of which can render SVG with JavaScript execution. Th...

CVE-2026-32940

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, SanitizeSVG has an incomplete blocklist — it blocks data:text/html and data:image/svg+xml in href attributes but misses data:text/xml and data:application/xml, both of which can render SVG with JavaScript execution. Th...

EUVD-2026-10897

SiYuan has a SVG Sanitizer Bypass via Whitespace in javascript: URI — Unauthenticated XSS...

GHSA-PMC9-F5QR-2PCR SiYuan has a SVG Sanitizer Bypass via Whitespace in `javascript:` URI — Unauthenticated XSS

SVG Sanitizer Bypass via Whitespace in javascript: URI — Unauthenticated XSS Summary SiYuan's SVG sanitizer SanitizeSVG checks href attributes for the javascript: prefix using strings.HasPrefix. However, inserting ASCII tab , newline , or carriage return characters inside the javascript: string...

SiYuan has a SVG Sanitizer Bypass via Whitespace in `javascript:` URI — Unauthenticated XSS

SVG Sanitizer Bypass via Whitespace in javascript: URI — Unauthenticated XSS Summary SiYuan's SVG sanitizer SanitizeSVG checks href attributes for the javascript: prefix using strings.HasPrefix. However, inserting ASCII tab , newline , or carriage return characters inside the javascript: string...

EUVD-2026-10896

SiYuan has a SVG Sanitizer Bypass via Whitespace in javascript: URI — Unauthenticated XSS...

EUVD-2026-10893

SiYuan has a SVG Sanitizer Bypass via Element — Unauthenticated XSS...

EUVD-2026-10892

SiYuan has a SVG Sanitizer Bypass via Element — Unauthenticated XSS...

GHSA-5HC8-QMG8-PW27 SiYuan has a SVG Sanitizer Bypass via `<animate>` Element — Unauthenticated XSS

SVG Sanitizer Bypass via Element — Unauthenticated XSS Summary SiYuan's SVG sanitizer SanitizeSVG blocks dangerous elements , , and removes on event handlers and javascript: in href attributes. However, it does NOT block SVG animation elements , which can dynamically set attributes to dangerous...

CVE-2026-31809

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer SanitizeSVG checks href attributes for the javascript: prefix using strings.HasPrefix. However, inserting ASCII tab , newline , or carriage return characters inside the javascript: string bypasses this prefi...

CVE-2026-31807

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer SanitizeSVG blocks dangerous elements , , and removes on event handlers and javascript: in href attributes. However, it does NOT block SVG animation elements , which can dynamically set attributes to dangero...

CVE-2026-31809 SiYuan has a SVG Sanitizer Bypass via Whitespace in `javascript:` URI — Unauthenticated XSS

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer SanitizeSVG checks href attributes for the javascript: prefix using strings.HasPrefix. However, inserting ASCII tab , newline , or carriage return characters inside the javascript: string bypasses this prefi...

CVE-2026-31807 SiYuan has a SVG Sanitizer Bypass via `<animate>` Element — Unauthenticated XSS

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer SanitizeSVG blocks dangerous elements , , and removes on event handlers and javascript: in href attributes. However, it does NOT block SVG animation elements , which can dynamically set attributes to dangero...

CVE-2026-31807 SiYuan has a SVG Sanitizer Bypass via `<animate>` Element — Unauthenticated XSS

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer SanitizeSVG blocks dangerous elements , , and removes on event handlers and javascript: in href attributes. However, it does NOT block SVG animation elements , which can dynamically set attributes to dangero...