CVE-2025-12263 is an SQL injection vulnerability identified in the Online Event Judging System version 1.0 developed by code-projects. The vulnerability resides in the /edit_judge.php script, where the judge_id parameter is improperly sanitized, allowing an attacker to inject malicious SQL code. This injection flaw can be exploited remotely without authentication or user interaction, enabling attackers to manipulate backend database queries. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no authentication required (AT:N), no user interaction (UI:N), and partial impacts on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Exploitation could lead to unauthorized data disclosure, modification, or deletion within the event judging system's database. Although no active exploits have been reported in the wild, publicly available exploit code increases the risk of exploitation by opportunistic attackers. The vulnerability affects only version 1.0 of the product, which is a specialized application used to manage and judge events, potentially limiting the scope but posing significant risks to organizations relying on it for event management and decision-making processes. The lack of official patches necessitates immediate mitigation efforts by users.

For European organizations using the Online Event Judging System 1.0, this vulnerability could lead to unauthorized access to sensitive event data, manipulation of judging results, or disruption of event management processes. Confidentiality impacts include exposure of participant or judge information stored in the database. Integrity impacts involve the potential alteration of judging scores or event outcomes, undermining trust in event fairness. Availability impacts, while partial, could result from database corruption or denial of service caused by malicious queries. Given the remote and unauthenticated nature of the exploit, attackers could leverage this vulnerability to influence event results or extract sensitive data without needing legitimate access. This could be particularly damaging for organizations conducting high-profile or regulated events, such as academic competitions, industry awards, or public sector evaluations. The moderate CVSS score reflects these risks but also indicates that exploitation requires some level of access to the network hosting the application. The absence of known active exploits reduces immediate risk but does not eliminate the threat, especially as exploit code is publicly available.

European organizations should immediately implement input validation and sanitization on the judge_id parameter to prevent SQL injection. Employing parameterized queries or prepared statements in the /edit_judge.php script is critical to eliminate injection vectors. Network-level controls such as web application firewalls (WAFs) can be configured to detect and block SQL injection attempts targeting this endpoint. Restricting access to the Online Event Judging System to trusted internal networks or VPNs reduces exposure to remote attackers. Regularly monitoring logs for suspicious database query patterns or repeated access attempts to /edit_judge.php can help detect exploitation attempts early. Since no official patches are currently available, organizations should consider isolating the affected system or migrating to alternative event management solutions if feasible. Additionally, educating administrators about the risks and ensuring backups of event data are maintained can aid in recovery if exploitation occurs.