Arbitrary File Upload Vulnerability in Employee Records System by SourceCodester
CVE-2021-4462

9.3CRITICAL

Key Information:

Vendor

Employee Records System

Status
Employee Records System
Vendor
CVE Published:
10 November 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-4462?

The Employee Records System version 1.0 is susceptible to an arbitrary file upload vulnerability via the uploadID.php endpoint. This flaw allows an unauthenticated remote attacker to upload malicious files without any server-side validation. Consequently, these uploaded files may be executed, leading to potential exploitation of the system. It is imperative to implement stringent checks to prevent unauthorized file uploads and protect sensitive data.

Affected Version(s)

Employee Records System 1.0

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-2021-4462 - Proof of Concept

References

https://www.sourcecodester.com/php/11393/employee-records...
product
https://www.exploit-db.com/exploits/49596
exploit
https://www.vulncheck.com/advisories/employees-records-sy...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
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

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JSON
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CVE-2021-4462 : Arbitrary File Upload Vulnerability in Employee Records System by SourceCodester