Unrestricted File Upload Vulnerability in zlt2000 Microservices Platform
CVE-2025-8841

5.3MEDIUM

Key Information:

Vendor

Zlt2000

Status
Microservices-platform
Vendor
CVE Published:
11 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8841?

A vulnerability has been identified in the zlt2000 microservices-platform where the function responsible for file uploads does not properly restrict the types of files that can be uploaded. This issue arises from code located in FileController.java, allowing remote attackers to exploit the system by uploading malicious files. The vulnerability can lead to severe security breaches as attackers may execute harmful actions on the server due to the unrestricted upload permissions.

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Affected Version(s)

microservices-platform 6.0

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-2025-8841 - Proof of Concept

References

https://vuldb.com/?id.319375
vdb-entrytechnical-description
https://vuldb.com/?ctiid.319375
signaturepermissions-required
https://vuldb.com/?submit.623100
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

ZAST.AI (VulDB User)
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