Improper Authentication Vulnerability in MCPHub by samanhappy
CVE-2025-11287

6.9MEDIUM

Key Information:

Vendor

Samanhappy

Status
Mcphub
Vendor
CVE Published:
5 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11287?

A vulnerability exists in MCPHub versions up to 0.9.10, specifically affecting the handleSseConnection function within the sseService.ts file. This flaw can lead to unauthorized access by allowing attackers to bypass authentication mechanisms. The issue can be exploited remotely, and the details of the exploit are publicly accessible. Despite early disclosure attempts, the vendor has not responded to address the issue. This vulnerability highlights the importance of ensuring robust authentication processes to safeguard sensitive data.

Affected Version(s)

MCPHub 0.9.0

MCPHub 0.9.1

MCPHub 0.9.2

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-2025-11287 - Proof of Concept

References

https://vuldb.com/?id.327045
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327045
signaturepermissions-required
https://vuldb.com/?submit.661170
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
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

Yu Bao (VulDB User)
JSON
.
CVE-2025-11287 : Improper Authentication Vulnerability in MCPHub by samanhappy