CVE-2025-6079 is a critical vulnerability affecting the dasinfomedia School Management System plugin for WordPress, specifically in all versions up to and including 93.2.0. The vulnerability arises from improper validation of uploaded files in the homework.php component, which allows authenticated users with at least Student-level privileges to upload arbitrary files without restriction on file type. This lack of validation corresponds to CWE-434: Unrestricted Upload of File with Dangerous Type. Because the plugin does not restrict or sanitize the file types, attackers can upload malicious files such as web shells or scripts that can be executed on the server, potentially leading to remote code execution (RCE). The CVSS v3.1 base score of 8.8 reflects the high impact on confidentiality, integrity, and availability, with network attack vector, low attack complexity, and requiring only low privileges (authenticated student-level access) without user interaction. The vulnerability is particularly dangerous because it allows attackers to escalate from limited privileges to full control over the WordPress site and possibly the underlying server environment. No patches have been published yet, and no known exploits are reported in the wild, but the vulnerability is publicly disclosed and thus poses a significant risk to sites using this plugin.

For European organizations, especially educational institutions and entities using WordPress-based school management systems, this vulnerability poses a severe risk. Exploitation could lead to unauthorized access to sensitive student and staff data, disruption of educational services, and potential defacement or takeover of websites. The ability to execute arbitrary code remotely could allow attackers to implant persistent backdoors, steal confidential information, or use compromised servers as a foothold for further attacks within the organization's network. Given the widespread use of WordPress in Europe and the critical role of educational platforms, the impact could extend to data privacy violations under GDPR, reputational damage, and operational downtime. The vulnerability's exploitation could also be leveraged by threat actors targeting European educational infrastructure for espionage or sabotage, increasing the threat level.

Immediate mitigation steps include restricting access to the vulnerable plugin by disabling or uninstalling it if possible until a patch is available. Organizations should implement strict role-based access controls to limit who can upload files, ensuring that only trusted users have such privileges. Web application firewalls (WAFs) can be configured to detect and block suspicious file upload patterns or executable file types. Monitoring and logging upload activities on the affected endpoints should be enhanced to detect anomalous behavior. Additionally, organizations should conduct thorough security audits of their WordPress installations and plugins, applying the principle of least privilege. Once a patch or update is released by dasinfomedia, it should be applied promptly. In the interim, consider implementing file type validation at the server level or using security plugins that enforce upload restrictions. Regular backups and incident response plans should be reviewed and tested to prepare for potential exploitation.