Improper Authorization in SourceCodester Student Grades Management System
CVE-2026-9483

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-2026-9483?

A vulnerability has been identified in the SourceCodester Student Grades Management System 1.0, specifically affecting the grades.php file. This flaw arises from improper authorization related to the manipulation of the student_id argument. Attackers can potentially exploit this weakness from a remote location, allowing unauthorized access to sensitive student grade data. Given that the exploit has been publicly disclosed, it poses a significant risk to users of the affected system, emphasizing the need for immediate remediation.

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-2026-9483 - Proof of Concept

References

https://vuldb.com/vuln/365464
vdb-entrytechnical-description
https://vuldb.com/vuln/365464/cti
signaturepermissions-required
https://vuldb.com/submit/814037
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)
.