CVE-2022-43355 is a high-severity SQL injection vulnerability identified in Sanitization Management System version 1.0. The vulnerability exists in the handling of the 'id' parameter within the endpoint /php-sms/classes/Master.php?f=delete_service. SQL injection (CWE-89) occurs when untrusted input is improperly sanitized and directly incorporated into SQL queries, allowing an attacker to manipulate the database query structure. In this case, the 'id' parameter is vulnerable, enabling an authenticated user (as indicated by the CVSS vector requiring privileges) to inject malicious SQL code. The vulnerability has a CVSS 3.1 score of 7.2, reflecting high impact on confidentiality, integrity, and availability, with network attack vector, low attack complexity, and no user interaction required. Exploitation could lead to unauthorized data access, modification, or deletion, potentially compromising the entire database managed by the system. Although no known exploits are currently reported in the wild, the vulnerability's presence in a management system that likely handles critical sanitization data poses significant risk. The lack of vendor or product details limits the scope of direct attribution but suggests the system is used in environments requiring sanitization management, possibly healthcare or industrial sectors.

For European organizations, this vulnerability could have severe consequences, especially for entities relying on Sanitization Management Systems in healthcare, manufacturing, or public health sectors. Exploitation could lead to unauthorized disclosure of sensitive operational data, manipulation or deletion of sanitization schedules or records, and disruption of critical hygiene processes. This could result in regulatory non-compliance, reputational damage, and operational downtime. Given the GDPR and other stringent data protection regulations in Europe, unauthorized data access could lead to significant legal and financial penalties. Additionally, disruption in sanitization processes could impact public health safety, particularly in hospitals or food processing facilities, increasing the risk of contamination or infection spread.

To mitigate this vulnerability, organizations should first identify if they use the affected Sanitization Management System version 1.0. Immediate steps include applying any available patches or updates from the vendor; if none exist, organizations should implement compensating controls such as web application firewalls (WAFs) with specific rules to detect and block SQL injection attempts targeting the 'id' parameter at the specified endpoint. Code review and input validation should be enforced to ensure all user inputs are sanitized and parameterized queries or prepared statements are used to prevent injection. Restricting database user privileges to the minimum necessary can limit the impact of a successful injection. Monitoring and logging access to the vulnerable endpoint should be enhanced to detect suspicious activities promptly. Finally, organizations should conduct penetration testing and vulnerability scanning to confirm the absence of exploitable injection points.