# CVE-2025-56399: File upload in n/a

> Authenticated attackers can achieve remote code execution by uploading a disguised PHP file and renaming it via the API.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Oct 2025
- **Updated:** 5 Aug 2026
- **Also known as:** GHSA-rhx3-j9rv-vfqm

## What is CVE-2025-56399?

CVE-2025-56399 is a high-severity vulnerability in n/a, published on 28 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2025-56399?


## How do I fix CVE-2025-56399?

No fix has been published for CVE-2025-56399 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-56399 being exploited?

There is no known exploitation of CVE-2025-56399 in the wild and no public exploit code.

Public exploit code:

- An authenticated Remote Code Execution (RCE) vulnerability in laravel-file-manager v3.3.1 and below allows attackers with access to the file manager interface to execute arbitrary code on the server. (github_poc): https://github.com/Theethat-Thamwasin/CVE-2025-56399
- PoC for CVE-2025-56399 - Unrestricted File Upload leading to RCE in alexusmai/laravel-file-manager (≤3.3.1). Automates detection, CSRF extraction, and File Upload (github_poc): https://github.com/Jenderal92/laravel-filemanager-unrestricted-upload
- CVE-2025-56399 – Remote Code Execution in laravel-file-manager v3.3.1. Exploits misconfigured config in Laravel File Manager to upload and verify a PHP shell via unauthenticated file upload. (github_poc): https://github.com/im-hanzou/CVE-2025-56399

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-56399 and fix it if it is affected.

What it is: CVE-2025-56399 is a high-severity vulnerability in n/a, published on 28 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-56399 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-56399/ (Markdown: https://insights.sbomify.com/CVE-2025-56399/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-56399
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-56399
- OSV: https://osv.dev/vulnerability/CVE-2025-56399

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-56399/
Summaries are generated and may contain mistakes; the official description above is the record.