Is this vulnerability remotely exploitable?

Yes. Because the endpoint is unauthenticated, a remote attacker can craft and share a malicious link that, when opened by a logged-in user in a browser, executes JavaScript in the SiYuan origin.

Does an attacker need valid credentials to exploit this?

The attacker does not need credentials to trigger the vulnerability, but they rely on the victim being authenticated in their browser to perform privileged actions or access sensitive data via the compromised session.

What is the safest general fix pattern for this issue?

The most robust fix is to ensure all dynamic content in SVG/HTML is passed through context-appropriate encoding and, where feasible, to eliminate direct injection of raw user-controlled strings into markup, favoring strict whitelists and predefined templates.

Severity:

CRITICAL RISK

(9.3)

Reflected XSS in Dynamic Icon API (CWE-79) in SiYuan Knowledge Management System

CVE-2026-29183

Published:

Mar 6, 2026

Status:

Received

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-78

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

Remote Code Execution

March 7, 2026

CWE-89

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Remote Code Execution via SQL Injection on the Database Server

March 7, 2026

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Account compromise and authenticated actions via cross-site scripting in the SiYuan web origin

Severity:

CRITICAL RISK

(9.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Account compromise and authenticated actions via cross-site scripting in the SiYuan web origin

Severity:

CRITICAL RISK

(9.3)

CVSS Version:

3.1

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Reflected XSS in Dynamic Icon API (CWE-79) in SiYuan Knowledge Management System

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

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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