Overview
The cybersecurity community is currently dealing with a significant vulnerability identified as CVE-2025-52904. The vulnerability specifically affects the File Browser web application, version 2.32.0, and is related to the unrestricted execution of shell commands. The issue resides within the Command Execution feature of Filebrowser that could potentially grant read and write permissions to an attacker, bypassing the scope assigned to users which is meant to restrict access to files. This vulnerability is particularly concerning as it can lead to system compromise and data leakage. The severity of this vulnerability and the potential impact on systems necessitate immediate attention and action.
Vulnerability Summary
CVE ID: CVE-2025-52904
Severity: High (8.0 CVSS Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
Filebrowser | 2.32.0
How the Exploit Works
The exploit operates by utilizing the Command Execution feature of Filebrowser. The vulnerability lies in the fact that commands executed through this feature are not restricted to the user’s assigned scope. This means an attacker could potentially execute shell commands that grant them read and write access to all files managed by the server, bypassing the scope-based file access control mechanism in place. This unrestricted access could lead to unauthorized data access, system compromise, and potential data leakage.
Conceptual Example Code
Below is a conceptual example of how an attacker might exploit this vulnerability. In this example, a shell command that lists all files in the server’s root directory is executed, illustrating the potential for unauthorized access to files outside of the user’s assigned scope.
$ filebrowser -r / -c 'ls -R /'This command could be issued by an attacker to gain a comprehensive view of the system’s file structure, paving the way for further malicious activities like data theft or system compromise. This conceptual example underscores the seriousness of the vulnerability and the urgent need for mitigation measures.