Unrestricted File Upload Vulnerability in Cyber-III Student-Management System
CVE-2026-5670

5.3MEDIUM

Key Information:

Vendor

Cyber-iii

Status
Student-management-system
Vendor
CVE Published:
6 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5670?

A vulnerability in the Cyber-III Student-Management System allows for unrestricted file uploads through the manipulation of the 'File' parameter in the 'move_uploaded_file' function located in '/AssignmentSection/submission/upload.php'. This issue can be exploited remotely, enabling attackers to upload potentially malicious files. Continuous delivery practices mean specific versioning details are elusive, and despite prior notifications to the project maintainers regarding this issue, no response has been documented yet. Users are advised to exercise caution and monitor for updates.

Affected Version(s)

Student-Management-System 1a938fa61e9f735078e9b291d2e6215b4942af3f

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-2026-5670 - Proof of Concept

References

https://vuldb.com/vuln/355492
vdb-entrytechnical-description
https://vuldb.com/vuln/355492/cti
signaturepermissions-required
https://vuldb.com/submit/786022
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

Lier (VulDB User)
VulDB CNA Team
.