CVE-2025-11402 is an SQL injection vulnerability identified in version 1.0 of the SourceCodester Hotel and Lodge Management System. The flaw exists in the /del_curr.php script, where the ID parameter is improperly sanitized, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely without authentication or user interaction, making it accessible to a wide range of attackers. The CVSS 4.0 score of 5.3 reflects a medium severity, considering the attack vector is network-based with low attack complexity and no privileges or user interaction required. The impact on confidentiality, integrity, and availability is limited but non-negligible, as attackers can potentially read or modify database records, disrupt operations, or escalate further attacks. No official patches have been linked yet, and while no active exploitation is reported, the public disclosure of the exploit increases the risk of opportunistic attacks. The vulnerability affects only version 1.0 of the product, which is used primarily in hospitality management contexts. The lack of secure coding practices in input validation highlights the need for immediate remediation to prevent SQL injection attacks that could compromise sensitive customer and operational data.

For European organizations, especially those in the hospitality sector using SourceCodester Hotel and Lodge Management System 1.0, this vulnerability poses risks of unauthorized data access, data manipulation, and potential service disruption. Confidential customer information, booking details, and financial records stored in the backend database could be exposed or altered, leading to privacy breaches and operational challenges. The ability to execute SQL commands remotely without authentication increases the threat level, as attackers can exploit this vulnerability from anywhere. This could result in reputational damage, regulatory penalties under GDPR for data breaches, and financial losses. The impact is particularly significant for businesses with remote or internet-facing management systems, common in European tourist destinations. Additionally, attackers could leverage this vulnerability as a foothold for further network intrusion or lateral movement within the organization’s IT infrastructure.

Organizations should immediately audit their SourceCodester Hotel and Lodge Management System installations to identify affected versions. Since no official patch is currently available, implement the following mitigations: (1) Apply strict input validation and parameterized queries or prepared statements in the /del_curr.php script to prevent SQL injection. (2) Deploy Web Application Firewalls (WAFs) configured to detect and block SQL injection payloads targeting the ID parameter. (3) Restrict remote access to the management system by using VPNs or IP whitelisting to limit exposure. (4) Monitor logs for suspicious SQL queries or unusual database activity indicative of exploitation attempts. (5) Consider isolating the application server from critical internal networks to limit lateral movement. (6) Engage with the vendor or community for updates or patches and plan for timely application once available. (7) Conduct security awareness training for administrators to recognize and respond to potential exploitation signs.