CVE-2026-32751

MEDIUM EPSS 51.8%
Published Mar 19, 20263mo ago · Modified Jun 17, 20262w ago
5.1 CVSS 4.0
Medium
Find Similar
Published Mar 19, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the mobile file tree (MobileFiles.ts) renders notebook names via innerHTML without HTML escaping when processing renamenotebook WebSocket events. The desktop version (Files.ts) properly uses escapeHtml() for the same operation. An authenticated user who can rename notebooks can inject arbitrary HTML/JavaScript that executes on any mobile client viewing the file tree. Since Electron is configured with nodeIntegration: true and contextIsolation: false, the injected JavaScript has full Node.js access, escalating stored XSS to full remote code execution. The mobile layout is also used in the Electron desktop app when the window is narrow, making this exploitable on desktop as well. This issue has been fixed in version 3.6.1.

CVSS Details

Base Score
5.1
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
51.8% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
b3logsiyuan* <3.6.1

References 3

  • github.com https://github.com/siyuan-note/siyuan/commit/f6d35103f774b65e52f03e018649ff0e57924fb0
    Patch
  • github.com https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1
    Release Notes
  • github.com https://github.com/siyuan-note/siyuan/security/advisories/GHSA-qr46-rcv3-4hq3
    ExploitMitigationVendor Advisory

Remediation

  • github.com https://github.com/siyuan-note/siyuan/commit/f6d35103f774b65e52f03e018649ff0e57924fb0
    Patch