CVE-2025-11657 is a security vulnerability identified in the ProjectsAndPrograms School Management System, specifically affecting the /assets/createNotice.php file. The vulnerability arises from improper handling of the 'File' argument, allowing an attacker to upload files without any restrictions. This unrestricted upload capability can be exploited remotely without requiring authentication or user interaction, making it highly accessible to attackers. The uploaded files could be malicious scripts or executables, potentially enabling remote code execution, privilege escalation, or persistent backdoors within the affected system. The product follows a rolling release model, complicating precise version identification, but the vulnerability is confirmed up to the commit hash 6b6fae5426044f89c08d0dd101c7fa71f9042a59. The CVSS 4.0 base score is 6.9, categorized as medium severity, reflecting the network attack vector, low complexity, and no required privileges or user interaction. The impact metrics indicate low confidentiality, integrity, and availability impacts individually, but combined they can lead to significant compromise. No patches or updates have been explicitly linked yet, and no known exploits are currently active in the wild, though public disclosure increases risk. This vulnerability is critical for organizations relying on this school management system, as it could lead to unauthorized access, data leakage, defacement, or denial of service.

For European organizations, particularly educational institutions using the ProjectsAndPrograms School Management System, this vulnerability poses a significant risk. Successful exploitation could lead to unauthorized system access, data breaches involving sensitive student and staff information, and potential disruption of educational services. The ability to upload arbitrary files remotely without authentication increases the attack surface and likelihood of compromise. This could result in reputational damage, legal liabilities under GDPR due to data exposure, and operational downtime. Additionally, attackers could leverage the vulnerability to establish persistent footholds or pivot to other internal systems. Given the critical nature of educational infrastructure and the increasing targeting of such sectors by cybercriminals and state-sponsored actors, the impact could extend beyond individual institutions to affect regional educational continuity and trust.

Organizations should immediately audit their deployments of the ProjectsAndPrograms School Management System to identify affected versions. Since no official patches are currently referenced, administrators should implement compensating controls: 1) Enforce strict server-side validation of uploaded files, including checking MIME types, file extensions, and scanning for malicious content. 2) Restrict upload directories with appropriate permissions to prevent execution of uploaded files. 3) Employ web application firewalls (WAFs) to detect and block suspicious upload attempts targeting /assets/createNotice.php. 4) Monitor logs for unusual file upload activity and anomalous requests. 5) If possible, disable or restrict the file upload functionality until a patch is available. 6) Engage with the vendor or community for updates or patches due to the rolling release model. 7) Educate IT staff on this vulnerability and ensure incident response plans include scenarios involving file upload abuse. These measures will reduce the risk of exploitation while awaiting official fixes.