Server-Side Request Forgery Vulnerability in imprvhub mcp-browser-agent
CVE-2026-5607

5.3MEDIUM

Key Information:

Vendor

Imprvhub

Status
Mcp-browser-agent
Vendor
CVE Published:
6 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5607?

A vulnerability has been identified in the imprvhub mcp-browser-agent affecting versions up to 0.8.0. This issue allows for server-side request forgery through improper handling of parameters in the CallToolRequestSchema function of the URL Parameter Handler. A malicious actor can exploit this vulnerability remotely by manipulating specific arguments, which could lead to unauthorized access to internal services. This exploit has been publicly disclosed, and despite early notification to the vendor, no response has been received.

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Affected Version(s)

mcp-browser-agent 0.1

mcp-browser-agent 0.2

mcp-browser-agent 0.3

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-2026-5607 - Proof of Concept

References

https://vuldb.com/vuln/355398
vdb-entrytechnical-description
https://vuldb.com/vuln/355398/cti
signaturepermissions-required
https://vuldb.com/submit/785034
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:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

feng kairui (VulDB User)
VulDB CNA Team
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