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...

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...

EUVD-2026-10892

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

EUVD-2026-10893

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

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 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-2026-31809 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...

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...

PT-2026-24462

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.5.10 Description SiYuan is a personal knowledge management system. The SVG sanitizer SanitizeSVG in versions prior to 3.5.10 does not block SVG animation elements , , allowing attackers to dynamically set attributes ...

PT-2026-24464

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.5.10 Description SiYuan is a personal knowledge management system susceptible to a reflected cross-site scripting XSS condition. The SVG sanitizer, SanitizeSVG, inadequately checks href attributes for the 'javascript...

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...

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...

SiYuan 跨站脚本漏洞

SiYuan is a privacy-oriented personal knowledge management system developed by SiYuan. Versions of SiYuan prior to 3.5.9 contained a cross-site scripting vulnerability. This vulnerability stemmed from the dynamic icon API endpoint not properly escaping the content controlled by attackers, which...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the getDynamicIcon endpoint when attacker-controlled input is embedded into SVG output without proper sanitization. An attacker can execute arbitrary JavaScript in the context of the web application by...

SiYuan: Unauthenticated Reflected XSS via SVG Injection in /api/icon/getDynamicIcon Endpoint

Summary 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 endpoint is unauthenticated and returns image/svg+xml, a crafted URL ca...

PT-2026-26178

Name of the Vulnerable Software and Affected Versions SiYuan versions 3.6.0 and earlier Description SiYuan, a personal knowledge management system, has an incomplete blocklist in its SanitizeSVG function. The function blocks 'data:text/html' and 'data:image/svg+xml' in 'href' attributes but fails...

SiYuan cross-site scripting vulnerabilities

SiYuan is a privacy-oriented personal knowledge management system developed by SiYuan itself. Versions of SiYuan prior to 3.5.4 contained a cross-site scripting vulnerability. This vulnerability stemmed from the /api/icon/getDynamicIcon endpoint’s improper handling of uncleaned SVG inputs, which...