CVE-2025-6404 is a critical SQL Injection vulnerability identified in version 1.0 of the Campcodes Online Teacher Record Management System, specifically within the /admin/search.php file. The vulnerability arises from improper sanitization or validation of the 'searchdata' parameter, which is directly used in SQL queries. This flaw allows an unauthenticated remote attacker to inject malicious SQL code, potentially manipulating the backend database. Exploitation does not require any user interaction or privileges, making it highly accessible. The vulnerability can lead to unauthorized data disclosure, data modification, or even complete compromise of the database server. Although the CVSS 4.0 score is 6.9 (medium severity), the nature of SQL injection vulnerabilities often allows attackers to escalate impact beyond initial assessments, especially if the database contains sensitive teacher or student records. No patches or mitigations have been publicly disclosed yet, and while no known exploits are currently active in the wild, the public disclosure of the exploit code increases the risk of imminent attacks. The vulnerability affects only version 1.0 of the product, which is a niche education management system used to maintain teacher records, likely deployed in educational institutions or administrative bodies managing teacher data.

For European organizations, particularly educational institutions and government education departments using Campcodes Online Teacher Record Management System 1.0, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive personal data of teachers, including personally identifiable information (PII), employment records, and possibly student-related data if integrated. This compromises confidentiality and may violate GDPR regulations, leading to legal and financial repercussions. Integrity of records could be undermined, allowing attackers to alter or delete critical data, disrupting administrative operations. Availability could also be impacted if attackers execute destructive SQL commands or cause database crashes. The risk is heightened in Europe due to strict data protection laws and the critical nature of education sector data. Additionally, the remote, unauthenticated nature of the exploit increases the attack surface, potentially allowing widespread exploitation if the system is internet-facing.

1. Immediate mitigation should include restricting external access to the /admin/search.php endpoint via network-level controls such as firewalls or VPNs, limiting access only to trusted internal networks or authenticated users. 2. Implement Web Application Firewall (WAF) rules specifically targeting SQL injection patterns on the 'searchdata' parameter to block malicious payloads. 3. Conduct a thorough code review and refactor the vulnerable search functionality to use parameterized queries or prepared statements, eliminating direct concatenation of user input into SQL commands. 4. Apply input validation and sanitization on all user-supplied data, enforcing strict data types and length restrictions. 5. Monitor logs for unusual query patterns or repeated failed attempts targeting the search functionality. 6. If possible, isolate the database with least privilege access and ensure regular backups are maintained to enable recovery in case of data tampering. 7. Engage with the vendor for an official patch or upgrade path and prioritize deployment once available. 8. Educate administrators about the risks and signs of exploitation attempts to improve detection and response.