CVE-2026-2090 is a SQL injection vulnerability identified in SourceCodester Online Class Record System version 1.0. The vulnerability resides in the processing of the 'term' parameter within the /admin/message/search.php script. An attacker can remotely send crafted input to this parameter, which is improperly sanitized or validated, allowing arbitrary SQL commands to be executed on the backend database. This can lead to unauthorized data access, modification, or deletion, potentially compromising sensitive student records or administrative data. The vulnerability requires no authentication or user interaction, making it easier to exploit remotely. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and partial impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Although no known exploits are currently active in the wild, the public disclosure increases the likelihood of exploitation attempts. The lack of available patches necessitates immediate mitigation efforts by administrators. This vulnerability highlights the importance of secure input validation and parameterized queries in web applications handling sensitive educational data.

The impact of CVE-2026-2090 on organizations using SourceCodester Online Class Record System can be significant. Successful exploitation could lead to unauthorized disclosure of sensitive student and administrative data, violating privacy regulations and damaging institutional reputation. Attackers might also alter or delete records, disrupting academic operations and data integrity. The ability to execute arbitrary SQL commands remotely without authentication increases the risk of widespread exploitation, especially in environments exposed to the internet. Educational institutions, particularly those with limited cybersecurity resources, may face operational downtime, regulatory penalties, and loss of stakeholder trust. The vulnerability could also serve as a foothold for further network compromise if attackers leverage database access to escalate privileges or move laterally within the network. Given the critical nature of educational data, the threat poses a moderate to high risk to confidentiality, integrity, and availability of affected systems.

To mitigate CVE-2026-2090, organizations should immediately review and restrict access to the /admin/message/search.php endpoint, ideally limiting it to trusted internal networks or VPN access. Implement web application firewalls (WAFs) with custom rules to detect and block SQL injection patterns targeting the 'term' parameter. Conduct thorough input validation and sanitization on all user-supplied data, employing parameterized queries or prepared statements to prevent injection. If possible, upgrade to a patched version of the software once available or apply vendor-provided fixes. In the absence of patches, consider temporarily disabling or restricting the vulnerable functionality. Regularly monitor logs for suspicious query patterns or repeated failed attempts indicative of exploitation. Educate administrators on secure coding practices and the importance of timely vulnerability management. Finally, maintain regular backups of critical data to enable recovery in case of data corruption or loss due to exploitation.