Server-Side Request Forgery in Mastergo Design's Magic MCP Component
CVE-2026-15750

5.3MEDIUM

Key Information:

Vendor

Mastergo-design

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15750?

A vulnerability exists in the Mastergo Magic MCP component, specifically in its z.string function located in src/tools/get-component-link.ts. This flaw allows an attacker to manipulate the URL argument, potentially leading to server-side request forgery (SSRF). With SSRF, an attacker can send requests from the server to internal or external services, which may enable them to access sensitive information or perform unauthorized actions. The issue has been publicly disclosed, and despite early notification to the project team, a fix has not yet been made available.

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-2026-15750 - Proof of Concept

References

https://vuldb.com/vuln/378329
vdb-entrytechnical-description
https://vuldb.com/vuln/378329/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15750
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mcfly_Zhang (VulDB User)
VulDB CNA Team
.