CVE-2026-34585

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a vulnerability allows crafted block attribute values to bypass server-side attribute escaping when an HTML entity is mixed with raw special characters. An attacker can embed a malicious IAL value inside a .sy document,...

CVE-2026-34448

SiYuan is a personal knowledge management system. Prior to version 3.6.2, an attacker who can place a malicious URL in an Attribute View mAsse field can trigger stored XSS when a victim opens the Gallery or Kanban view with “Cover From - Asset Field” enabled. The vulnerable code accepts arbitrary...

CVE-2026-34585

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a vulnerability allows crafted block attribute values to bypass server-side attribute escaping when an HTML entity is mixed with raw special characters. An attacker can embed a malicious IAL value inside a .sy document,...

CVE-2026-34585 SiYuan: Stored XSS in imported .sy.zip content leads to arbitrary command execution

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a vulnerability allows crafted block attribute values to bypass server-side attribute escaping when an HTML entity is mixed with raw special characters. An attacker can embed a malicious IAL value inside a .sy document,...

CVE-2026-34585 SiYuan: Stored XSS in imported .sy.zip content leads to arbitrary command execution

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a vulnerability allows crafted block attribute values to bypass server-side attribute escaping when an HTML entity is mixed with raw special characters. An attacker can embed a malicious IAL value inside a .sy document,...

CVE-2026-34585 SiYuan: Stored XSS in imported .sy.zip content leads to arbitrary command execution

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a vulnerability allows crafted block attribute values to bypass server-side attribute escaping when an HTML entity is mixed with raw special characters. An attacker can embed a malicious IAL value inside a .sy document,...

CVE-2026-34585

SiYuan prior to version 3.6.2 is affected. A crafted IAL value inside a .sy document packaged as a .sy.zip can bypass server-side attribute escaping during Import, causing an HTML context break and stored XSS. In the Electron desktop client, this XSS can execute JavaScript with Node/Electron priv...

CVE-2026-34449

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a malicious website can achieve Remote Code Execution RCE on any desktop running SiYuan by exploiting the permissive CORS policy Access-Control-Allow-Origin: + Access-Control-Allow-Private-Network: true to inject a JavaScri...

CVE-2026-34449 SiYuan: Cross-Origin RCE via Permissive CORS Policy and JavaScript Snippet Injection

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a malicious website can achieve Remote Code Execution RCE on any desktop running SiYuan by exploiting the permissive CORS policy Access-Control-Allow-Origin: + Access-Control-Allow-Private-Network: true to inject a JavaScri...

CVE-2026-34449

CVE-2026-34449 affects SiYuan Desktop prior to 3.6.2. The root cause is a permissive CORS/Private Network policy in the local API (Access-Control-Allow-Origin: * and Access-Control-Allow-Private-Network: true) coupled with an endpoint that can inject JavaScript snippets. An attacker-controlled pa...

EUVD-2026-17676

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a malicious website can achieve Remote Code Execution RCE on any desktop running SiYuan by exploiting the permissive CORS policy Access-Control-Allow-Origin: + Access-Control-Allow-Private-Network: true to inject a JavaScri...

CVE-2026-34449 SiYuan: Cross-Origin RCE via Permissive CORS Policy and JavaScript Snippet Injection

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a malicious website can achieve Remote Code Execution RCE on any desktop running SiYuan by exploiting the permissive CORS policy Access-Control-Allow-Origin: + Access-Control-Allow-Private-Network: true to inject a JavaScri...

CVE-2026-34448

SiYuan prior to 3.6.2 is affected by a stored XSS in the Attribute View Gallery/Kanban rendering: placing a malicious URL in an Asset Field can be injected into an tag without escaping, with the Electron desktop client executing injected code due to nodeIntegration enabled and contextIsolation d...

EUVD-2026-17675

SiYuan is a personal knowledge management system. Prior to version 3.6.2, an attacker who can place a malicious URL in an Attribute View mAsse field can trigger stored XSS when a victim opens the Gallery or Kanban view with “Cover From - Asset Field” enabled. The vulnerable code accepts arbitrary...

CVE-2026-34448

SiYuan is a personal knowledge management system. Prior to version 3.6.2, an attacker who can place a malicious URL in an Attribute View mAsse field can trigger stored XSS when a victim opens the Gallery or Kanban view with “Cover From - Asset Field” enabled. The vulnerable code accepts arbitrary...

SiYuan 代码注入漏洞

SiYuan is a privacy-oriented personal knowledge management system developed by SiYuan itself. Versions of SiYuan prior to 3.6.2 contained a code injection vulnerability. This vulnerability stemmed from the possibility that custom block attribute values could bypass server-side attribute escaping,...

PT-2026-29377

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.6.2 Description A security flaw exists in SiYuan that allows a malicious website to achieve Remote Code Execution RCE on a desktop system running the application. This is possible due to a permissive CORS policy...

PT-2026-29376

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.6.2 Description SiYuan is a personal knowledge management system susceptible to a stored cross-site scripting XSS issue. An attacker can inject a malicious URL into an Attribute View mAsse field. When a victim opens...

CVE-2026-33955

Notesnook is a note-taking app. Prior to version 3.3.11 on Web/Desktop, a cross-site scripting vulnerability stored in the note history comparison viewer can escalate to remote code execution in a desktop application. The issue is triggered when an attacker-controlled note header is displayed usi...

CVE-2026-33976

Notesnook is a note-taking app. Prior to version 3.3.11 on Web/Desktop and 3.3.17 on Android/iOS, a stored XSS in the Web Clipper rendering flow can be escalated to remote code execution in the desktop app. The root cause is that the clipper preserves attacker-controlled attributes from the sourc...