CVE-2025-11334 is a SQL injection vulnerability identified in version 1.0 of the Campcodes Online Apartment Visitor Management System. The vulnerability resides in the /visitor-detail.php script, specifically in the handling of the 'editid' parameter. This parameter is susceptible to SQL injection due to inadequate input validation or sanitization, allowing an attacker to inject arbitrary SQL commands remotely without requiring authentication or user interaction. The vulnerability's CVSS 4.0 base score is 6.9, reflecting a medium severity level, with an attack vector of network (remote), low attack complexity, and no privileges or user interaction needed. The impact metrics indicate limited confidentiality, integrity, and availability impacts, suggesting that while the attacker can manipulate some data or extract information, the full system compromise is unlikely without further chaining. The exploit code has been publicly disclosed, increasing the risk of exploitation despite no known active attacks in the wild. The vulnerability affects only version 1.0 of the product, and no official patches have been released yet. The lack of patch links implies that organizations must implement manual mitigations or monitor for updates. This vulnerability is critical for organizations managing apartment visitor data, as it could lead to unauthorized data access, modification, or denial of service, impacting resident privacy and operational continuity.

For European organizations, especially those in property management and residential services using Campcodes Online Apartment Visitor Management System 1.0, this vulnerability poses a significant risk. Successful exploitation could lead to unauthorized access to sensitive visitor information, potentially exposing personal data of residents and visitors, violating GDPR and other privacy regulations. Data integrity could be compromised, allowing attackers to alter visitor records, which may disrupt security protocols and trust. Availability impacts, while limited, could cause temporary denial of service or system instability, affecting operational workflows. The public availability of exploit code increases the likelihood of opportunistic attacks, especially targeting less-secured deployments. The reputational damage and regulatory penalties for data breaches in Europe could be substantial. Organizations relying on this system must assess their exposure and prioritize remediation to prevent exploitation.

Organizations should immediately audit their use of Campcodes Online Apartment Visitor Management System to identify affected versions. Since no official patches are currently available, implement the following mitigations: 1) Apply strict input validation and sanitization on the 'editid' parameter, preferably using parameterized queries or prepared statements to prevent SQL injection. 2) Restrict network access to the management interface using firewalls or VPNs to limit exposure to trusted users only. 3) Monitor logs for unusual database queries or access patterns indicative of injection attempts. 4) Employ web application firewalls (WAFs) with rules targeting SQL injection signatures to provide an additional layer of defense. 5) Segregate the visitor management system database from other critical systems to contain potential breaches. 6) Prepare for rapid patch deployment once the vendor releases an official fix. 7) Conduct security awareness training for administrators managing the system to recognize and respond to suspicious activity.