CVE-2025-12853 is a SQL injection vulnerability identified in version 1.0 of the SourceCodester Best House Rental Management System, a web-based application used for managing rental properties. The flaw exists in the delete_house function located in the /admin_class.php file, where the ID parameter is not properly sanitized before being used in SQL queries. This improper input validation allows an attacker to inject malicious SQL code remotely, potentially manipulating or extracting sensitive data from the backend database. The vulnerability does not require user interaction but does require high privileges (authentication) to exploit, limiting the attack surface to authenticated users with access to the vulnerable function. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no user interaction (UI:N), and high privileges required (PR:H). The impact on confidentiality, integrity, and availability is low to limited, as the vulnerability scope is confined to the affected component without system-wide impact. No public exploits have been reported, but the vulnerability has been publicly disclosed, increasing the risk of future exploitation. The lack of available patches or updates means organizations must implement compensating controls until a fix is released.

For European organizations using the SourceCodester Best House Rental Management System, this vulnerability poses a risk of unauthorized data manipulation or disclosure within their property management databases. Attackers with authenticated access could delete or alter house rental records, potentially disrupting business operations and causing financial or reputational damage. The impact on confidentiality could involve exposure of tenant or property owner information, while integrity could be compromised by unauthorized data changes. Availability impact is limited but could include denial of service on the affected module. Given the medium severity and requirement for authenticated access, the threat is more significant for organizations with weak internal access controls or those that expose administrative interfaces over the internet. The absence of known exploits reduces immediate risk but does not eliminate it, especially as the vulnerability is publicly disclosed.

Organizations should immediately audit and restrict access to the administrative interfaces of the Best House Rental Management System, ensuring only trusted personnel have high-level privileges. Input validation and parameterized queries must be implemented in the delete_house function to prevent SQL injection. If source code access is available, developers should sanitize the ID parameter using prepared statements or stored procedures. Network-level protections such as web application firewalls (WAFs) can be configured to detect and block SQL injection attempts targeting this endpoint. Regular monitoring of logs for suspicious activity related to the delete_house function is recommended. Until an official patch is released, consider isolating the application from public internet access or implementing VPN access for administrators. Additionally, organizations should maintain regular backups of their databases to enable recovery from potential data tampering.