Is this vulnerability remotely exploitable over the internet?

Yes. If an attacker can publish or influence a package listed in the Bazaar, they can deliver malicious metadata to any user that opens the marketplace tab, leading to remote code execution on those users' machines.

Does an attacker need local access or user interaction to exploit this?

No local access is required beyond the ability to supply malicious package metadata. From the victim's side, simply opening or refreshing the Bazaar page in an affected version is enough to trigger the exploit; no additional clicks are necessary.

What is the safest general fix pattern for developers?

Ensure all untrusted metadata is properly escaped or sanitized before rendering, and adjust the Electron security model so that untrusted UI surfaces do not have direct access to Node.js or the operating system. Isolate privileged logic behind controlled IPC channels.

Severity:

CRITICAL RISK

(9.0)

Stored XSS (CWE-79) in SiYuan Bazaar Package Metadata Leading to RCE

CVE-2026-33067

Published:

Mar 20, 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 Cross-Site Scripting

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 Cross-Site Scripting

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 Bazaar Package Metadata Leading to RCE

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