Improper Authorization Vulnerability in SourceCodester Student Grades Management System
CVE-2026-9484

5.3MEDIUM

Key Information:

Vendor

Sourcecodester
Status
Student Grades Management System
Vendor
CVE Published:
25 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9484?

A vulnerability affecting the SourceCodester Student Grades Management System version 1.0 has been identified in the function responsible for managing classroom students. This issue arises from improper handling of the classroom_id argument within the classroom.php file, which could permit unauthorized access to modify student-class assignments. The vulnerability can be exploited remotely, allowing attackers to manipulate classroom data without appropriate authorization, thereby posing a significant risk to user integrity.

Affected Version(s)

Student Grades Management 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-2026-9484 - Proof of Concept

References

https://vuldb.com/vuln/365465
vdb-entrytechnical-description
https://vuldb.com/vuln/365465/cti
signaturepermissions-required
https://vuldb.com/submit/814038
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

GeekerA (VulDB User)
.