CVE-2025-57921 in Frontend File Manager Plugin
Summary
by MITRE • 09/22/2025
Missing Authorization vulnerability in N-Media Frontend File Manager allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Frontend File Manager: from n/a through 23.2.
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Analysis
by VulDB Data Team • 09/22/2025
The vulnerability identified as CVE-2025-57921 represents a critical missing authorization flaw within the N-Media Frontend File Manager component that exposes systems to unauthorized access and potential data compromise. This security weakness stems from incorrectly configured access control mechanisms that fail to properly validate user permissions before granting file management operations. The vulnerability affects all versions of the Frontend File Manager from the initial release through version 23.2, indicating a long-standing issue that has persisted across multiple iterations of the software. The root cause lies in the application's failure to implement proper authorization checks, allowing malicious actors to bypass intended security controls and perform unauthorized file operations.
The technical implementation of this vulnerability manifests through insufficient access control validation within the file manager's authentication flow. When users attempt to perform file operations such as upload, download, delete, or modify files, the system fails to verify whether the authenticated user possesses the necessary privileges to execute these actions. This misconfiguration creates a pathway for attackers to exploit the system's trust model and gain access to resources they should not be authorized to access. The flaw operates at the application logic level where authorization decisions are made, typically through missing or bypassable permission checks that should normally be enforced before any file operation is permitted. According to the CWE catalog, this vulnerability aligns with CWE-285, which describes improper authorization scenarios where systems fail to properly enforce access controls. The issue demonstrates a classic case of insufficient authorization checks that allows privilege escalation and unauthorized resource access.
The operational impact of this vulnerability extends beyond simple unauthorized file access to encompass potential data breaches, system compromise, and regulatory compliance violations. Attackers can leverage this weakness to upload malicious files, delete critical system files, or access sensitive data stored within the file manager's scope. The consequences are particularly severe in environments where the file manager handles confidential information, user data, or system-critical files. Organizations may face significant financial losses, reputational damage, and regulatory penalties if sensitive data is compromised through this vulnerability. The attack surface is broad as the flaw affects the entire range of versions from the initial release through 23.2, meaning that organizations running any version within this range are potentially exposed to exploitation. From an attacker's perspective, this vulnerability represents a low-effort, high-impact vector that can be exploited without requiring advanced technical skills or specialized tools.
Mitigation strategies for CVE-2025-57921 must address both immediate remediation and long-term security architecture improvements. Organizations should prioritize upgrading to the latest available version of the N-Media Frontend File Manager where the authorization flaw has been patched. Additionally, implementing proper access control mechanisms including role-based access control, mandatory access control, and regular authorization audits can prevent similar issues from occurring. Network segmentation and monitoring should be enhanced to detect unauthorized file operations and access attempts. The implementation of principle of least privilege should be enforced where users can only access files and perform operations necessary for their specific roles. Security controls should include regular vulnerability assessments, penetration testing, and continuous monitoring of file access patterns. According to ATT&CK framework, this vulnerability maps to T1078 for valid accounts and T1566 for social engineering, indicating that attackers may use compromised accounts or exploit this weakness to establish persistence and further compromise systems. Organizations should also consider implementing file integrity monitoring, automated patch management systems, and comprehensive security awareness training to reduce the risk of exploitation. Regular security assessments and code reviews should be conducted to identify and remediate similar authorization flaws in other components of the system.