Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the backend renderREADME function uses lute.New() without calling SetSanitize(true), allowing raw HTML embedded in Markdown to pass through unmodified. The frontend then assigns the rendered HTML to innerHTML without any additional sanitization. A malicious package author can embed arbitrary JavaScript in their README that executes when a user clicks to view the package details. Because SiYuan's Electron configuration enables nodeIntegration: true with contextIsolation: false, this XSS escalates directly to full Remote Code Execution. The issue was patched in version 3.6.1.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-33066 SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the backend renderREADME function uses http://lute.New() without calling SetSanitize(true), al… https://www.cve.org/CVERecord?id=CVE-2026-33066
Post summary
The post discloses a vulnerability in SiYuan's renderREADME function that lacks input sanitization, but no PoC, exploit, or active exploitation is reported.
CVE-2026-33066 XSS to Remote Code Execution in SiYuan Knowledge Management System Before 3.6.1 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-33066
Post summary
CVE-2026-33066 reveals an XSS vulnerability that can be leveraged for remote code execution in SiYuan Knowledge Management System versions prior to 3.6.1, yet no PoC, exploit, active exploitation, or patch details are provided.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | b3log | siyuan | - | - | - |