Executive Summary

The vulnerability CVE-2026-11532 is an insufficient authorization issue in the student_management_system. It occurs because the system fails to enforce proper server-side role-based access control. Specifically, users with only VIEW privileges can perform privileged actions such as adding and deleting student records. Although the user interface hides buttons for these actions, the backend endpoints like add.php do not validate user permissions, allowing attackers to bypass restrictions by sending crafted HTTP requests directly.

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Impact Analysis

This vulnerability can lead to privilege escalation where users with limited permissions can perform unauthorized actions. It can cause loss of data integrity by allowing unauthorized addition or deletion of student records. Attackers can exploit this flaw remotely by crafting HTTP requests, potentially compromising the system's reliability and trustworthiness.

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Compliance Impact

The vulnerability can lead to compliance violations because unauthorized access and modification of sensitive student records may breach data protection regulations such as GDPR and HIPAA. Improper access controls undermine the confidentiality and integrity of personal data, which are core requirements of these standards.

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Detection Guidance

This vulnerability can be detected by monitoring for unauthorized HTTP requests to the add.php endpoint that perform privileged actions such as adding student records, especially from users with only VIEW privileges.

A practical detection method is to analyze web server logs or use network monitoring tools to identify POST requests to /add.php originating from accounts or sessions that should not have such privileges.

For example, you can use the following command to search web server logs for suspicious POST requests to add.php:

• grep 'POST /add.php' /var/log/apache2/access.log

Additionally, you can use tools like curl to manually test if a user with limited privileges can perform actions they should not be able to, by crafting direct HTTP POST requests to add.php.

• curl -X POST -d 'parameters' -b 'cookie_for_view_user' https://target/student_management_system/add.php

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Mitigation Strategies

Immediate mitigation steps include implementing proper server-side authorization checks on the add.php and related endpoints to ensure that only users with appropriate privileges can perform privileged actions.

Until a patch or update is available, restrict access to the add.php endpoint by network controls or web application firewall rules to block unauthorized POST requests.

Also, review and remove or disable default accounts with elevated privileges, such as the default VIEW user (admin1/admin), to reduce the risk of exploitation.

Monitor logs for suspicious activity and consider alerting on unexpected POST requests to add.php from users without proper authorization.

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