CVE-2026-13548: SQL Injection in itsourcecode Hospital Management System 1.0

Technical summary

CVE-2026-13548 is a SQL injection flaw (CWE-89, CWE-74) in itsourcecode Hospital Management System 1.0 affecting the /doctortimings.php endpoint. The vulnerability stems from insufficient input validation on the editid parameter, which is passed directly into a SQL query without proper parameterization or sanitization. This allows authenticated attackers to inject arbitrary SQL commands, potentially achieving unauthorized data access, modification, or denial of service. The attack vector is network-based and requires valid application credentials, reducing but not eliminating real-world exploitability in healthcare environments where account compromise or insider threats are credible scenarios.

Business impact

Hospital operations depend on accurate scheduling and patient data integrity. A successful exploitation could corrupt doctor timings, appointment schedules, or expose protected health information (PHI), creating compliance violations under HIPAA and similar regulations. Data exfiltration or modification could disrupt clinical workflows, erode patient trust, and trigger regulatory penalties. The presence of public exploit code means defenders cannot rely on obscurity; remediation must be prioritized before active exploitation occurs in production environments.

Affected systems

The vulnerability affects itsourcecode Hospital Management System version 1.0. Organizations using this system should inventory all instances, including development, testing, and production deployments. If no newer version is available or if the vendor has ceased support, compensating controls and network segmentation become critical mitigation strategies.

Exploitability

Exploitation requires valid application credentials, limiting the attack surface to insider threats, compromised user accounts, or attackers who have gained access through a separate vulnerability. The CVSS score of 6.3 (MEDIUM) reflects this authentication requirement; however, the availability of public exploit code lowers the barrier for attackers with basic SQL injection knowledge. In healthcare settings with weak credential hygiene or shared accounts, the practical risk is elevated.

Remediation

Immediate action: contact itsourcecode for a patched version or security advisory. Until a patch is available, implement input validation and parameterized queries (prepared statements) in the /doctortimings.php file to neutralize SQL injection. Apply network-level access controls to restrict the application to trusted users and networks. Monitor database logs for anomalous queries. Consider upgrading to a supported Hospital Management System if the vendor cannot provide a timely fix. Verify patches against official vendor advisories before deployment.

Patch guidance

Check the itsourcecode website and vendor security advisories for an updated release addressing CVE-2026-13548. If a patch exists, test it thoroughly in a non-production environment before rollout, paying special attention to doctor scheduling functionality and data integrity. If no patch is available, work with the vendor on a remediation timeline or evaluate alternative solutions. Do not rely solely on network controls; code-level fixes are essential for SQL injection.

Detection guidance

Monitor application logs and web server access logs for suspicious patterns in the /doctortimings.php endpoint, such as requests containing SQL metacharacters (semicolons, quotes, comment syntax) in the editid parameter. Enable SQL query logging and alerting for unusual commands targeting the doctor timings table. Conduct regular penetration testing of the Hospital Management System to validate that input sanitization controls are in place. Database activity monitoring (DAM) tools can help detect injection attempts and unauthorized data access.

Why prioritize this

Although the CVSS score is MEDIUM (6.3), the context is high-risk: healthcare environments store sensitive data subject to regulatory compliance, the exploit is publicly available, and the attack requires only valid credentials rather than zero-day sophistication. The combination of public exploit availability, healthcare sensitivity, and regulatory exposure justifies prompt remediation even at a MEDIUM CVSS score.

Risk score, explained

The CVSS 3.1 score of 6.3 reflects a network-accessible SQL injection vulnerability that requires authentication (PR:L), results in limited confidentiality and integrity impact (C:L, I:L), and offers no availability impact (A:L). The MEDIUM severity appropriately downweights the risk from HIGH because a valid user account is a prerequisite. However, context—public exploit code and healthcare data—elevates practical priority beyond the base score.

Frequently asked questions