SQL Injection Vulnerability in MCP Handler by AlejandroArciniegas
CVE-2026-5322

6.9MEDIUM

Key Information:

Vendor

Alejandroarciniegas

Status
Mcp-data-vis
Vendor
CVE Published:
2 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5322?

An SQL Injection vulnerability has been discovered in the MCP Handler component developed by AlejandroArciniegas, specifically within the 'Request' function of the 'server.js' file. This flaw allows attackers to manipulate SQL queries, potentially exposing sensitive data. Given the nature of the vulnerability, remote exploitation is possible, leading to significant security risks. Despite attempts to notify the vendor, there has been no acknowledgment or response regarding this serious issue. The product follows a rolling release model; therefore, details on affected versions may vary.

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Affected Version(s)

mcp-data-vis bc597e391f184d2187062fd567599a3cb72adf51

mcp-data-vis de5a51525a69822290eaee569a1ab447b490746d

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-2026-5322 - Proof of Concept

References

https://vuldb.com/vuln/354654
vdb-entrytechnical-description
https://vuldb.com/vuln/354654/cti
signaturepermissions-required
https://vuldb.com/submit/780731
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

BigW (VulDB User)
VulDB
JSON
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