CVE-2025-14833 identifies a SQL injection vulnerability in the code-projects Online Appointment Booking System version 1.0, specifically within the /admin/deletemanagerclinic.php script. The vulnerability arises from improper sanitization of the 'clinic' parameter, which is directly used in SQL queries without adequate validation or parameterization. This flaw allows an unauthenticated attacker to remotely inject malicious SQL code, potentially manipulating the backend database. The attack vector is network-based with no required privileges or user interaction, making exploitation straightforward once the system is accessible. The impact includes unauthorized data disclosure, modification, or deletion, which could compromise patient or client data and disrupt appointment scheduling services. Although no confirmed exploits are reported in the wild, the public availability of exploit code increases the likelihood of attacks. The vulnerability affects only version 1.0 of the product, and no official patches have been published yet. The CVSS 4.0 base score of 6.9 reflects medium severity, considering the ease of exploitation and potential impact on confidentiality, integrity, and availability. The lack of scope change indicates the attack affects only the vulnerable component without extending to other system parts. This vulnerability highlights the critical need for secure coding practices in web applications handling sensitive scheduling and personal data.

For European organizations, especially those in healthcare, wellness, or service industries relying on the code-projects Online Appointment Booking System, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive client or patient data, violating GDPR and other data protection regulations, resulting in legal and financial penalties. Data integrity could be compromised, causing incorrect appointment records or deletion of critical scheduling information, disrupting operations and service delivery. Availability impacts may arise if attackers execute destructive SQL commands, leading to denial of service. The remote, unauthenticated nature of the vulnerability increases the attack surface, particularly for organizations exposing the booking system's admin interface to the internet. This could facilitate lateral movement or further compromise if attackers gain database access. The reputational damage from data breaches or service outages could be severe, especially for healthcare providers. Additionally, the lack of patches means organizations must act swiftly to implement mitigations. Overall, the vulnerability threatens confidentiality, integrity, and availability, with compliance and operational risks amplified in the European regulatory and business context.

European organizations should immediately audit their deployment of the code-projects Online Appointment Booking System to identify if version 1.0 is in use. If so, restrict network access to the /admin/deletemanagerclinic.php endpoint using firewalls or web application firewalls (WAFs) to limit exposure to trusted IPs only. Implement input validation and sanitization at the application level, ensuring the 'clinic' parameter is strictly validated against expected formats and lengths. Where possible, modify the source code to use parameterized queries or prepared statements to eliminate SQL injection risks. Monitor logs for suspicious activities targeting the vulnerable endpoint and set up alerts for anomalous SQL errors or injection patterns. Until an official patch is released, consider isolating the booking system in a segmented network zone to reduce lateral movement risk. Conduct regular backups of the database and test restoration procedures to mitigate data loss from potential attacks. Engage with the vendor or community to obtain patches or updates and apply them promptly once available. Finally, raise user awareness among administrators about the risks and signs of exploitation attempts.