SiYuan Note - Cross-Site Scripting

SiYuan Note through version 3.6.1 is vulnerable to unauthenticated reflected Cross-Site Scripting XSS in the /api/icon/getDynamicIcon endpoint due to improper filtering of SVG elements with a namespace prefix such as . By using a namespaced script element, attackers can bypass the SanitizeSVG...

GO-2026-5958 SiYuan: Unauthenticated SQLite Data Exfiltration via Template Injection in /api/icon/getDynamicIcon in github.com/siyuan-note/siyuan/kernel

SiYuan: Unauthenticated SQLite Data Exfiltration via Template Injection in /api/icon/getDynamicIcon in github.com/siyuan-note/siyuan/kernel...

SiYuan: Unauthenticated SQLite Data Exfiltration via Template Injection in /api/icon/getDynamicIcon

Summary 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 invokes RenderDynamicIconContentTemplate, which executes a Go template tha...

Missing Authentication for Critical Function

Overview Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the getDynamicIcon process. An attacker can retrieve sensitive database content by sending crafted requests to the unauthenticated endpoint with a valid block ID and specially crafted...

EUVD-2026-39124

SiYuan: Unauthenticated SQLite Data Exfiltration via Template Injection in /api/icon/getDynamicIcon...

GHSA-GCM7-57GF-953C SiYuan: Unauthenticated SQLite Data Exfiltration via Template Injection in /api/icon/getDynamicIcon

Summary 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 invokes RenderDynamicIconContentTemplate, which executes a Go template tha...

GO-2026-5201 SiYuan vulnerable to reflected XSS via SVG namespace prefix bypass in SanitizeSVG (getDynamicIcon, unauthenticated) in github.com/siyuan-note/siyuan/kernel

SiYuan vulnerable to reflected XSS via SVG namespace prefix bypass in SanitizeSVG getDynamicIcon, unauthenticated in github.com/siyuan-note/siyuan/kernel...

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 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: Unauthenticated SQLite Data Exfiltration via Template Injection in /api/icon/getDynamicIcon

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...

CVE-2026-54068 SiYuan: Unauthenticated SQLite Data Exfiltration via Template Injection in /api/icon/getDynamicIcon

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...

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...

Cross-site Scripting (XSS)

SiYuan is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to improper escaping of attacker-controlled content in SVG output generated by the dynamic icon API endpoint, which allows an attacker to inject and execute malicious JavaScript through crafted URLs...

SiYuan vulnerable to reflected XSS via SVG namespace prefix bypass in SanitizeSVG (getDynamicIcon, unauthenticated)

Summary The SanitizeSVG function introduced in v3.6.0 to fix XSS in the unauthenticated /api/icon/getDynamicIcon endpoint can be bypassed by using namespace-prefixed element names such as . The Go HTML5 parser records the element's tag as "x:script" rather than "script", so the tag check passes i...

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: Reflected XSS via SVG namespace prefix bypass in SanitizeSVG ( getDynamicIcon, unauthenticated )

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 3.6.0–3.6.1 suffer a bypass of the SanitizeSVG XSS fix on the unauthenticated /api/icon/getDynamicIcon endpoint. The Go HTML5 parser records namespace-prefixed SVG tags as x:script, allowing the tag to bypass the numeric sprite check; when served as image/svg+xml without a CSP, the browser...

CVE-2026-34605 SiYuan: Reflected XSS via SVG namespace prefix bypass in SanitizeSVG ( getDynamicIcon, unauthenticated )

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: Reflected XSS via SVG namespace prefix bypass in SanitizeSVG ( getDynamicIcon, unauthenticated )

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...