Path Traversal Vulnerability in Mastergo Design's Magic MCP Tool
CVE-2026-15751

4.8MEDIUM

Key Information:

Vendor

Mastergo-design

Status
Mastergo-magic-mcp
Vendor
CVE Published:
14 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15751?

A security vulnerability has been discovered in the Mastergo Design Magic MCP tool, particularly affecting the function execute in the component mcp__getComponentGenerator located in mastergo/component-workflow.md. This vulnerability allows unauthorized access to file paths due to improper handling of the argument rootPath, leading to a potential path traversal attack. Although the issue was reported early to the project team, there has been no acknowledgment or resolution. The nature of this exploit requires local access to the affected system, making it vital for users to apply best practices for secured access.

Affected Version(s)

mastergo-magic-mcp 0.1

mastergo-magic-mcp 0.2.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-15751 - Proof of Concept

References

https://vuldb.com/vuln/378330
vdb-entrytechnical-description
https://vuldb.com/vuln/378330/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15751
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mcfly_Zhang (VulDB User)
VulDB CNA Team
.