Is this vulnerability remotely exploitable, or does it require local access?

Exploitation requires network-accessible interaction with a SiYuan instance where the attacker can authenticate and rename notebooks. Once a malicious notebook name is stored, any user who views the file tree in the vulnerable layout (mobile or narrow Electron window) can be impacted remotely.

What level of access does an attacker need to exploit this issue?

The attacker must have valid credentials and sufficient permissions to rename notebooks in a shared or multi-user environment. Anonymous or unauthenticated users cannot exploit this specific flaw if the application requires authentication for notebook operations.

What is the safest general fix pattern for developers?

The most robust fix is to centralize and enforce HTML escaping for all user-derived fields before DOM insertion and to eliminate direct `innerHTML` usage for user data. Complement this by locking down Electron's configuration (disabling `nodeIntegration` and enabling `contextIsolation`) so that any residual XSS cannot escalate to arbitrary code execution.

Severity:

CRITICAL RISK

(9.0)

Stored XSS (CWE-79) in SiYuan Mobile File Tree Enables Remote Code Execution

CVE-2026-32751

Published:

Mar 19, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-918

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

Unauthorized Access to Internal Resources via SSRF

May 6, 2026

CWE-863

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Remote Code Execution via Stored XSS in Electron Environment

Severity:

CRITICAL RISK

(9.0)

CVSS Version:

3.1

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Remote Code Execution via Stored XSS in Electron Environment

Severity:

CRITICAL RISK

(9.0)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

Start Free Trial

Get Pentest Report

Ship clean & secure code faster

Start Free Trial

Get Pentest Report

Ship clean & secure code faster

Start Free Trial

Get Pentest Report

CodeAnt AI is an offensive and defensive security platform.

Defensive + offensive security.

From first line of code to a pentest
that knows every line of it.

SOC 2 Type II certified | CodeAnt AI is independently audited and compliant with SOC 2 Type II security standards

Ask AI for summary of CodeAnt

Defensive + offensive security.

From first line of code to a pentest
that knows every line of it.

Ask AI for summary of CodeAnt

Defensive + offensive security.

From first line of code to a pentest
that knows every line of it.

Ask AI for summary of CodeAnt

Stored XSS (CWE-79) in SiYuan Mobile File Tree Enables Remote Code Execution

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

Product

Compare

Company

Developers

Legal

Product

Compare

Company

Developers

Legal

Product

Compare

Company

Developers

Legal