Unrestricted File Upload Vulnerability in SourceCodester Contact Tracing System
CVE-2026-108973

6.9MEDIUM

Key Information:

Vendor

Sourcecodester
Status
Contact Tracing System
Vendor
CVE Published:
13 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108973?

A vulnerability exists in the SourceCodester Contact Tracing System 1.0 that allows for unrestricted file uploads through a flaw in the 'move_uploaded_file' function in the 'Users.php' file. By manipulating the 'img/id' argument, an attacker can upload files of arbitrary types, potentially leading to severe security risks. This vulnerability can be exploited remotely, making it particularly dangerous for users. The details of the exploit have been publicly disclosed, urging administrators to secure their systems against potential misuse.

Affected Version(s)

Contact Tracing 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-2026-108973 - Proof of Concept

References

https://vuldb.com/vuln/416792
vdb-entrytechnical-description
https://vuldb.com/vuln/416792/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-108973
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

SanthoshKumar (VulDB User)
.