CVE-2025-67147 identifies multiple SQL Injection vulnerabilities in the Gym-Management-System-PHP version 1.0, a PHP-based web application designed for managing gym operations. The vulnerabilities reside in several input parameters across three key PHP scripts: submit_contact.php ('name', 'email', 'comment'), secure_login.php ('username', 'pass_key'), and change_s_pwd.php ('login_id', 'pwfield', 'login_key'). These parameters are improperly sanitized, allowing attackers to inject malicious SQL code. An attacker can exploit these flaws without authentication or with limited authentication, enabling them to bypass login mechanisms, execute arbitrary SQL commands, manipulate or delete database records, and escalate privileges to administrator level. This could lead to full system compromise, data leakage, and unauthorized control over the application. The lack of a CVSS score indicates that the vulnerability is newly published and not yet fully assessed, but the technical details suggest high risk. No patches or known exploits are currently reported, but the vulnerabilities' nature demands urgent attention. The attack surface includes user input fields commonly accessible to both authenticated and unauthenticated users, increasing the likelihood of exploitation. The vulnerabilities stem from inadequate input validation and the absence of parameterized queries or prepared statements in the affected PHP scripts.

For European organizations using the Gym-Management-System-PHP 1.0, this vulnerability poses significant risks. Exploitation could lead to unauthorized access to sensitive personal data of gym members, including names, emails, and possibly payment information if stored in the database. Attackers could manipulate membership records, disrupt gym operations by deleting or altering data, and gain administrative privileges to control the system fully. This could result in service downtime, reputational damage, regulatory penalties under GDPR for data breaches, and financial losses. The ability to bypass authentication without credentials exacerbates the threat, making it easier for attackers to compromise systems remotely. Given the widespread use of PHP-based management systems in small to medium fitness centers across Europe, the impact could be broad. Additionally, compromised systems could be leveraged as pivot points for further attacks within organizational networks. The threat also raises concerns about data integrity and availability, critical for operational continuity in the fitness industry.

To mitigate these vulnerabilities, organizations should immediately conduct a thorough security review of the Gym-Management-System-PHP 1.0 source code, focusing on the affected PHP scripts. Implement parameterized queries or prepared statements to prevent SQL injection attacks instead of directly embedding user input into SQL commands. Apply rigorous input validation and sanitization on all user-supplied data, especially for the parameters identified. Restrict database user permissions to the minimum necessary, avoiding administrative privileges for the application database user. If possible, isolate the database server from direct internet access and monitor logs for suspicious SQL activity. Organizations should also consider upgrading to a patched version once available or replacing the vulnerable system with a more secure alternative. Regular security training for developers and administrators on secure coding practices is recommended. Finally, implement web application firewalls (WAFs) with SQL injection detection rules as an additional protective layer.