CVE-2024-28320 is an IDOR vulnerability identified in Hospital Management System 1.0, specifically in the /patient/edit-user.php endpoint. The vulnerability arises because the application fails to properly enforce authorization checks on user-supplied parameters, allowing an authenticated attacker to manipulate these parameters in a crafted POST request to access or modify data belonging to other users without proper permissions. This flaw is categorized under CWE-639, which involves authorization bypass through improper validation of object references. The vulnerability requires the attacker to have some level of privileges (PR:L) and user interaction (UI:R), indicating that exploitation is not fully remote or unauthenticated but can be performed by legitimate users abusing insufficient access controls. The CVSS 3.1 score of 7.6 reflects a high severity due to the potential for high confidentiality and integrity impact, as attackers can access or alter sensitive patient information, potentially violating privacy and data integrity. The availability impact is low, suggesting the system remains operational despite the exploit. No patches or known exploits have been reported yet, but the risk remains significant given the sensitive nature of healthcare data and regulatory compliance requirements. The vulnerability underscores the critical need for robust authorization mechanisms in healthcare applications to prevent unauthorized data access and modification.

The impact of CVE-2024-28320 on organizations is substantial, particularly for healthcare providers relying on Hospital Management System 1.0. Successful exploitation can lead to unauthorized disclosure of sensitive patient information, violating patient privacy and potentially breaching regulations such as HIPAA or GDPR. Integrity of patient records can be compromised, leading to incorrect medical data, which may affect patient care and safety. Although availability impact is low, the reputational damage and legal consequences from data breaches can be severe. Attackers with limited privileges can escalate their access, undermining trust in the healthcare provider's IT systems. The vulnerability also increases the risk of insider threats or malicious users abusing their access. Globally, healthcare organizations face increased scrutiny and regulatory pressure to secure patient data, making this vulnerability a critical concern for compliance and operational security.

To mitigate CVE-2024-28320, organizations should implement strict access control checks on all user-supplied parameters, especially in endpoints handling sensitive data like /patient/edit-user.php. Employ server-side authorization validation to ensure users can only access or modify resources they are permitted to. Conduct thorough code reviews and penetration testing focused on IDOR vulnerabilities. If patches become available from the vendor, apply them promptly. In the absence of patches, consider deploying web application firewalls (WAFs) with custom rules to detect and block suspicious parameter tampering. Implement robust logging and monitoring to detect unusual access patterns or unauthorized modifications. Educate users about the risks of parameter manipulation and enforce the principle of least privilege to limit the scope of potential exploitation. Regularly audit user permissions and session management to prevent privilege escalation. Finally, ensure compliance with healthcare data protection regulations by maintaining strong data governance and incident response plans.