CVE-2026-54068

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the /api/icon/getDynamicIcon endpoint is explicitly excluded from authentication in SiYuan's kernel router router.go, "不需要鉴权" -- no auth needed. When called with type=8 and a valid block id parameter, this endpoint...

CVE-2026-54068

SiYuan before 3.7.0: unauthenticated access to /api/icon/getDynamicIcon where type=8 with a valid block id runs Go templates that execute arbitrary SQL (RenderDynamicIconContentTemplate), enabling an attacker to exfiltrate extensive SQLite data (notes, tags, asset refs, block attributes). The roo...

Cross-Site Scripting (XSS)

github.com/siyuan-note/siyuan is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to incomplete SVG sanitization and improper handling of user-controlled input in the /api/icon/getDynamicIcon endpoint, which allows an attacker to inject malicious SVG content and execute JavaScript...

CVE-2026-34605

SiYuan is a personal knowledge management system. From version 3.6.0 to before version 3.6.2, the SanitizeSVG function introduced in version 3.6.0 to fix XSS in the unauthenticated /api/icon/getDynamicIcon endpoint can be bypassed by using namespace-prefixed element names such as . The Go HTML5...

CVE-2026-34605

SiYuan is a personal knowledge management system. From version 3.6.0 to before version 3.6.2, the SanitizeSVG function introduced in version 3.6.0 to fix XSS in the unauthenticated /api/icon/getDynamicIcon endpoint can be bypassed by using namespace-prefixed element names such as . The Go HTML5...

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...

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...

EUVD-2026-10897

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

EUVD-2026-10896

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-2026-10892

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

EUVD-2026-10893

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