CVE-2025-65358 identifies a SQL injection vulnerability in the Edoc-doctor-appointment-system version 1.0.1. The vulnerability exists in the 'docid' parameter of the /admin/appointment.php page, which is part of the administrative interface for managing appointments. SQL injection occurs when user-supplied input is improperly sanitized and directly embedded into SQL queries, allowing attackers to alter the intended query logic. Exploiting this vulnerability could enable attackers to retrieve, modify, or delete sensitive data stored in the backend database, such as patient records, appointment details, or user credentials. The lack of a CVSS score and public exploit indicates this is a newly discovered issue, but the risk remains significant due to the critical nature of the data and administrative access involved. The vulnerability does not require user interaction beyond sending crafted requests to the vulnerable endpoint, and authentication might be required if the admin interface is protected, which somewhat limits exploitation but does not eliminate risk. No patches or mitigations have been officially published yet, emphasizing the need for immediate defensive measures by system administrators.

For European organizations, especially those in the healthcare sector, this vulnerability poses a serious threat to the confidentiality and integrity of patient data and appointment records. Successful exploitation could lead to unauthorized data disclosure, data tampering, or denial of service by corrupting database contents. This could result in regulatory non-compliance, reputational damage, and operational disruptions. Given the sensitive nature of healthcare data under GDPR, breaches could lead to significant legal and financial penalties. The administrative nature of the vulnerable endpoint means that attackers gaining access could escalate privileges or pivot to other parts of the network. The absence of known exploits provides a window for proactive mitigation, but also means attackers may develop exploits soon after disclosure.

Immediate mitigation steps include implementing strict input validation and sanitization on the 'docid' parameter to prevent malicious SQL code injection. Employ parameterized queries or prepared statements to separate SQL code from data inputs. Restrict access to the /admin/appointment.php endpoint using network-level controls such as VPNs or IP whitelisting to limit exposure. Monitor logs for unusual query patterns or failed login attempts indicating exploitation attempts. Conduct a thorough security review of the entire application to identify and remediate similar injection flaws. If possible, isolate the appointment system from critical infrastructure and ensure regular backups are maintained to enable recovery in case of data corruption. Engage with the software vendor or community to obtain patches or updates addressing this vulnerability. Finally, educate administrative users about phishing and social engineering risks that could facilitate exploitation.