CVE-2022-43362 is a high-severity SQL injection vulnerability identified in Senayan Library Management System (SLiMS) version 9.4.2. The vulnerability exists in the loan_by_class.php script, specifically via the 'collType' parameter. SQL injection (CWE-89) vulnerabilities allow an attacker to manipulate backend SQL queries by injecting malicious input, potentially leading to unauthorized data access, data modification, or even complete compromise of the database and underlying system. According to the CVSS 3.1 vector (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), this vulnerability can be exploited remotely over the network with low attack complexity but requires high privileges (authenticated user) and no user interaction. The impact includes full confidentiality, integrity, and availability compromise of the affected system. Although no public exploits are currently known, the vulnerability's characteristics make it a significant risk for organizations using SLiMS 9.4.2. The lack of vendor or product information beyond the SLiMS version suggests limited public exposure but does not diminish the threat to affected deployments. The vulnerability was published on November 1, 2022, and is enriched by CISA, indicating recognition by US cybersecurity authorities. No official patches or mitigations are listed, which may necessitate manual code review or temporary workarounds by administrators.

For European organizations using Senayan Library Management System 9.4.2, this vulnerability poses a serious risk to library management infrastructure. Exploitation could lead to unauthorized disclosure of sensitive patron data, including personal information and borrowing records, violating GDPR and other privacy regulations. Integrity compromise could allow attackers to alter loan records or system configurations, disrupting library operations and trust. Availability impact could result in denial of service, affecting access to library resources. Given that SLiMS is an open-source library management system used in academic, public, and research libraries, the threat could affect institutions relying on this software for critical information services. The requirement for authenticated access limits exposure but insider threats or compromised credentials could facilitate exploitation. The absence of known exploits reduces immediate risk but does not preclude targeted attacks, especially in environments with less stringent access controls.

European organizations should immediately audit their SLiMS installations to identify if version 9.4.2 is in use. If so, they should restrict access to the loan_by_class.php script and the 'collType' parameter to trusted users only. Implementing strict input validation and parameterized queries in the application code is essential to remediate the SQL injection flaw. In the absence of an official patch, organizations should consider code-level mitigations such as sanitizing inputs or disabling vulnerable features temporarily. Monitoring and logging access to the affected script can help detect suspicious activity. Additionally, enforcing strong authentication mechanisms, including multi-factor authentication, can reduce the risk of exploitation by limiting unauthorized access. Regular backups and incident response plans should be updated to prepare for potential data integrity or availability incidents. Engaging with the SLiMS community or developers to obtain or contribute patches is advisable.