CVE-2025-11660 is a vulnerability identified in the ProjectsAndPrograms School Management System, specifically affecting an unknown functionality within the /assets/uploadSllyabus.php file. The issue arises from improper validation of the 'File' argument, allowing attackers to upload files without restrictions. This unrestricted upload vulnerability can be exploited remotely without any authentication or user interaction, making it highly accessible to attackers. The uploaded files could be malicious scripts or executables, potentially leading to remote code execution, data leakage, or system compromise. The product uses a rolling release model, which complicates version tracking and patch management, as affected versions are identified by commit hashes rather than traditional version numbers. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the network attack vector, low complexity, no privileges or user interaction required, and partial impacts on confidentiality, integrity, and availability. Although no exploits are currently known in the wild, the public disclosure of the vulnerability increases the likelihood of exploitation attempts. The vulnerability primarily threatens the confidentiality and integrity of data managed by the school system and could disrupt availability if exploited to deploy ransomware or other destructive payloads.

For European organizations, particularly educational institutions using the ProjectsAndPrograms School Management System, this vulnerability poses significant risks. Successful exploitation could lead to unauthorized access to sensitive student and staff data, including personal information and academic records, violating data protection regulations such as GDPR. Attackers could also deploy web shells or malware, leading to system downtime, loss of data integrity, or lateral movement within the network. The disruption of school management systems could impact administrative operations and educational delivery. Given the remote and unauthenticated nature of the exploit, attackers can easily target exposed systems over the internet. The rolling release nature of the software may delay patch deployment, prolonging exposure. Additionally, the educational sector is often targeted by ransomware groups, making this vulnerability a potential vector for such attacks. The impact extends beyond confidentiality to integrity and availability, affecting trust and operational continuity.

Organizations should immediately audit their deployment of the ProjectsAndPrograms School Management System to identify exposed instances of the /assets/uploadSllyabus.php endpoint. Implement strict server-side validation to restrict file uploads by type, size, and content, using allowlists rather than blocklists. Disable or restrict upload functionality if not required. Employ web application firewalls (WAFs) with rules to detect and block suspicious upload attempts targeting this endpoint. Monitor logs for unusual upload activity and signs of exploitation, such as unexpected file types or web shell signatures. Network segmentation should isolate the school management system from critical infrastructure to limit lateral movement. Since no official patches are currently available due to the rolling release model, maintain close communication with the vendor for updates and apply them promptly once released. Conduct regular security assessments and penetration tests focusing on file upload mechanisms. Educate IT staff about this vulnerability and ensure incident response plans include scenarios involving web application file upload abuse.