CVE-2025-12261 identifies an SQL injection vulnerability in CodeAstro Gym Management System version 1.0, located in the /admin/actions/remove-announcement.php script. The vulnerability arises from improper sanitization of the 'ID' parameter, which an attacker can manipulate remotely without authentication to inject malicious SQL commands. This can lead to unauthorized data disclosure, data modification, or deletion within the backend database. The CVSS 4.0 base score is 5.3, reflecting medium severity, with attack vector as network (remote), low attack complexity, no privileges or user interaction required, and limited impact on confidentiality, integrity, and availability. The vulnerability is publicly disclosed but not yet observed in active exploitation. The affected function likely handles administrative announcements removal, suggesting that exploitation could impact administrative data or system operations. The lack of available patches necessitates immediate mitigation through secure coding practices such as parameterized queries and input validation. Organizations relying on this system for managing gym operations and member data are at risk of data breaches and operational disruptions if exploited.

For European organizations using CodeAstro Gym Management System 1.0, this vulnerability poses a risk of unauthorized access to sensitive customer and operational data, potentially leading to data breaches involving personal information. The integrity of the database could be compromised, allowing attackers to alter or delete critical records such as membership details, billing information, or announcements. Availability may also be affected if attackers execute destructive SQL commands, causing service outages or data loss. Given the remote and unauthenticated nature of the exploit, attackers can launch attacks without prior access, increasing the threat surface. This could result in reputational damage, regulatory penalties under GDPR for data breaches, and operational downtime. The medium severity score indicates a moderate but tangible risk that requires timely remediation to prevent exploitation.

Specific mitigation steps include: 1) Immediate code review and update of the /admin/actions/remove-announcement.php script to implement parameterized SQL queries or prepared statements, eliminating direct concatenation of user input into SQL commands. 2) Implement strict input validation and sanitization for the 'ID' parameter to accept only expected numeric or alphanumeric formats. 3) Restrict access to administrative endpoints via network-level controls such as VPNs or IP whitelisting to reduce exposure. 4) Monitor logs for unusual or repeated requests targeting the vulnerable endpoint to detect potential exploitation attempts. 5) If patching is not immediately possible, deploy Web Application Firewalls (WAFs) with rules to block SQL injection patterns targeting the affected parameter. 6) Conduct security awareness training for administrators to recognize suspicious activity. 7) Plan for an update or patch deployment from the vendor once available, and consider migrating to a newer, secure version if feasible.