Remote code execution affecting Laravel File Manager
A vulnerability affecting the Laravel framework's file manager would allow an authenticated attacker to execute arbitrary code remotely on the affected web server.
Description
Technical context and vulnerability details
Laravel-file-manager (package alexusmai/laravel-file-manager) is a popular third-party component for the Laravel web framework, used for uploading and managing user files. This component is affected by a vulnerability labeled CVE-2025-56399 resulting from insufficient validation of uploaded files. Its exploitation would allow an authenticated malicious actor to bypass security filters by uploading an image file containing malicious code, then using the rename function to change the extension to .php. Accessing this file via a public URL results in the execution of arbitrary code on the web server. It is classified high with a severity score of 8.8 according to CVSS V3.1.
Potential Risks & Impact
Potential consequences upon exploitation
- Remote Arbitrary Code Execution;
- Total web server compromise;
- Breach of confidentiality, integrity and availability of data;
Affected systems
Products, components and targeted versions
- Versions 3.3.3 and earlier of the alexusmai/laravel-file-manager package;
Recommended Remediations & Actions
Immediate actions and recommended mitigations
- Restrict access to the file manager interface to trusted administrative accounts;
- Configure the web server to prohibit the execution of PHP scripts in user-only download directories;
- Temporarily disable the renaming feature or suspend use of the component until the publisher deploys a patch;
Sources & External Links
Vendor security advisories and documentation
Advisory Specifications
CSIRT Emergency Response
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