CVE-2024-55232 is an IDOR vulnerability found in the manage-notes.php module of PHPGurukul Online Notes Sharing Management System version 1.0. The flaw arises because the application fails to enforce proper authorization checks when processing requests to delete notes. As a result, an authenticated user with limited privileges can manipulate request parameters to delete notes owned by other users, violating access control policies. This vulnerability impacts the integrity and availability of user data, as attackers can remove critical information without permission. The vulnerability is remotely exploitable over the network (AV:N), requires low attack complexity (AC:L), and requires some privileges (PR:L) but no user interaction (UI:N). The scope remains unchanged (S:U), meaning the impact is limited to the vulnerable component. The CVSS v3.1 base score is 5.4, indicating medium severity. No patches or known exploits have been reported yet. The vulnerability is categorized under CWE-290 (Authentication Bypass by Spoofing) due to missing authorization checks. This issue highlights the importance of enforcing strict access control and validating user permissions on all sensitive operations in web applications.

The vulnerability allows unauthorized deletion of notes belonging to other users, directly impacting data integrity and availability. Organizations using PHPGurukul Online Notes Sharing Management System v1.0 risk data loss and potential disruption of note-sharing services. This could lead to operational inefficiencies, loss of user trust, and potential data recovery costs. While confidentiality is not directly impacted, the ability to delete data without authorization can facilitate further attacks or abuse of the system. Since the vulnerability requires some level of authenticated access, attackers must have at least limited privileges, which may restrict exploitation to insiders or compromised accounts. However, the ease of exploitation and network accessibility increase the risk of widespread abuse if the system is deployed in environments with many users or weak account controls.

To mitigate CVE-2024-55232, organizations should immediately review and update the authorization logic in the manage-notes.php module to ensure that users can only delete notes they own. Implement strict server-side access control checks that verify the ownership of the note before processing deletion requests. Conduct a thorough code audit for similar IDOR issues in other modules. Employ role-based access controls (RBAC) and the principle of least privilege to limit user permissions. Monitor logs for suspicious deletion activities and implement alerting for anomalous behavior. If possible, isolate the notes management system behind additional authentication layers or VPNs to reduce exposure. Until an official patch is released, consider disabling the note deletion feature or restricting it to trusted administrators. Educate users about the importance of strong authentication credentials to reduce the risk of account compromise.