CVE-2025-56399

HIGH

alexusmai laravel-file-manager <3.3.1 - Authenticated RCE

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2025-56399. PoCs published by Theethat-Thamwasin, Jenderal92, im-hanzou.

AI-analyzed exploit summary This repository contains a detailed writeup describing an authenticated Remote Code Execution (RCE) vulnerability in laravel-file-manager v3.3.1 and below. The vulnerability allows attackers to upload malicious files and rename them to executable PHP files, leading to arbitrary code execution.

Description

alexusmai laravel-file-manager 3.3.1 and before allows an authenticated attacker to achieve Remote Code Execution (RCE) through a crafted file upload. A file with a '.png` extension containing PHP code can be uploaded via the file manager interface. Although the upload appears to fail client-side validation, the file is still saved on the server. The attacker can then use the rename API to change the file extension to `.php`, and upon accessing it via a public URL, the server executes the embedded code.

Exploits (3)

nomisec WRITEUP 3 stars
by Theethat-Thamwasin · poc
https://github.com/Theethat-Thamwasin/CVE-2025-56399

This repository contains a detailed writeup describing an authenticated Remote Code Execution (RCE) vulnerability in laravel-file-manager v3.3.1 and below. The vulnerability allows attackers to upload malicious files and rename them to executable PHP files, leading to arbitrary code execution.

Classification
Writeup 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: laravel-file-manager v3.3.1 and below
Auth required
Prerequisites: Authenticated access to the file manager interface · Ability to upload or create files
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →
github WORKING POC
by Jenderal92 · pythonpoc
https://github.com/Jenderal92/laravel-filemanager-unrestricted-upload

This repository contains a functional exploit for CVE-2025-56399, an unrestricted file upload vulnerability in alexusmai/laravel-file-manager (versions ≤ 3.3.1). The exploit automates detection, CSRF token extraction, payload upload, and validation of a PHP web shell.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: alexusmai/laravel-file-manager ≤ 3.3.1
Auth required
Prerequisites: authenticated access to the Laravel FileManager interface
mistral-large-3 · analyzed Jun 28, 2026 Full analysis →
nomisec WORKING POC
by im-hanzou · poc
https://github.com/im-hanzou/CVE-2025-56399

This repository contains a functional exploit for CVE-2025-56399, targeting a file upload vulnerability in Laravel File Manager. The exploit automates CSRF token extraction, file upload, and shell verification to achieve remote code execution (RCE).

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Laravel File Manager (version not specified)
No auth needed
Prerequisites: Target URL with vulnerable Laravel File Manager endpoint · Network access to the target
mistral-large-3 · analyzed Mar 15, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v3 8.8
EPSS 0.0055
EPSS Percentile 43.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Published Oct 28, 2025
Tracked Since Feb 18, 2026