Improper Authorization Vulnerability in Cyber-III Student Management System
CVE-2026-5642

6.9MEDIUM

Key Information:

Vendor

Cyber-iii

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5642?

A vulnerability exists in the Cyber-III Student Management System related to improper authorization due to an issue in the HTTP POST Request Handler located in /viva/update.php. The problem arises from manipulation of the argument 'Name', allowing for unauthorized access. This vulnerability can be exploited remotely, which poses significant risks to users. Despite being made aware of the issue, the vendor has yet to provide a response or a fix.

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-2026-5642 - Proof of Concept

References

https://vuldb.com/vuln/355430
vdb-entrytechnical-description
https://vuldb.com/vuln/355430/cti
signaturepermissions-required
https://vuldb.com/submit/785857
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

xhh400plus (VulDB User)
VulDB CNA Team
.