CVE-2026-9484: SourceCodester Student Grades Management System improper authorization in classroom.php

CVE-2026-9484 · Severity: medium · CVSS 6.3 · Published 2026-05-25

The Student Grades Management System, a web application for managing academic records, contains a security flaw in its classroom management module. An attacker with basic user access can manipulate web requests to perform unauthorized actions, such as removing students from classrooms they do not manage. This could lead to data integrity issues and disruption of school administrative operations.

Technologies: SourceCodester Student Grades Management System. Vendors: SourceCodester.

Quick answers

Is CVE-2026-9484 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-9484 being exploited in the wild.
How severe is CVE-2026-9484?
Medium severity, with a CVSS score of 6.3, published 25 May 2026.
Which products and versions are affected?
SourceCodester Student Grades Management System 1.0.
Is there a fix for CVE-2026-9484?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-9484 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-9484?
Check whether you run SourceCodester Student Grades Management System at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An improper authorization vulnerability exists in SourceCodester Student Grades Management System 1.0 within the classroom.php file. The functions getClassroomStudents and removeStudentFromClassroom fail to properly validate user permissions when processing the classroom_id argument. A remote attacker with low-privileged (authenticated) access can manipulate this parameter to view or modify student-classroom associations that should be restricted. This vulnerability is classified under CWE-285 (Improper Authorization) and CWE-266 (Incorrect Privilege Assignment). Exploitation can be performed via direct network requests, and proof-of-concept details have been publicly disclosed.

Affected products

  • SourceCodester Student Grades Management System 1.0

Timeline

  • 2026-05-25: disclosed: Vulnerability disclosed and CVE assigned
  • 2026-05-25: advisory: NVD and VulDB published advisories

References

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