CVE-2025-22930 is a critical SQL injection vulnerability identified in OS4ED openSIS versions 7.0 through 9.1. The vulnerability exists in the /messaging/Group.php endpoint, specifically through the 'groupid' parameter. SQL injection (CWE-89) occurs when untrusted input is improperly sanitized and directly incorporated into SQL queries, allowing an attacker to manipulate the database query logic. In this case, the 'groupid' parameter is vulnerable to injection, enabling an attacker to execute arbitrary SQL commands on the backend database. The vulnerability has a CVSS v3.1 base score of 9.8, indicating a critical severity level. The vector string (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) shows that the attack can be performed remotely over the network without any authentication or user interaction, with low attack complexity. The impact on confidentiality, integrity, and availability is high, meaning an attacker can fully compromise the database, extract sensitive data, modify or delete records, and potentially disrupt the application’s operation. Although no known exploits are currently reported in the wild, the ease of exploitation and critical impact make this vulnerability a significant threat. The lack of vendor or product-specific details beyond the openSIS versions suggests that the vulnerability is tied to the openSIS platform, which is an open-source student information system widely used in educational institutions. The vulnerability affects multiple versions, indicating that a broad range of deployments could be impacted if not patched or mitigated. No official patches or remediation links are currently provided, which may delay immediate resolution.

For European organizations, particularly educational institutions and administrative bodies using openSIS, this vulnerability poses a severe risk. Exploitation could lead to unauthorized access to sensitive student and staff data, including personal identification information, academic records, and communication logs. This could result in data breaches violating GDPR regulations, leading to significant legal and financial penalties. Integrity compromise could allow attackers to alter grades, attendance records, or messaging content, undermining trust in educational processes. Availability impact could disrupt communication channels within institutions, affecting operational continuity. Given the remote, unauthenticated nature of the exploit, attackers could target multiple institutions en masse, potentially causing widespread disruption in the education sector. The vulnerability could also be leveraged as a foothold for further network intrusion or lateral movement within organizational IT environments. The critical severity and ease of exploitation make this a high-priority threat for European organizations relying on openSIS for student information management.

1. Immediate deployment of any available patches or updates from OS4ED openSIS vendors or community releases is essential once available. 2. In the absence of official patches, implement web application firewall (WAF) rules specifically designed to detect and block SQL injection attempts targeting the 'groupid' parameter in /messaging/Group.php. 3. Conduct a thorough code review and apply input validation and parameterized queries (prepared statements) to sanitize the 'groupid' parameter and any other user inputs interacting with the database. 4. Restrict database user permissions to the minimum necessary to limit the impact of potential injection attacks. 5. Monitor logs for unusual database query patterns or errors indicative of injection attempts. 6. Educate system administrators and developers on secure coding practices and the importance of timely patching. 7. Consider network segmentation to isolate the openSIS application servers from critical internal systems to reduce lateral movement risk. 8. Perform regular vulnerability scanning and penetration testing focused on SQL injection vectors to detect similar issues proactively.