# CVE-2024-21546: UniSharp Laravel Filemanager Code Injection vulnerability

> Attackers can execute arbitrary code by uploading files with manipulated extensions in the Laravel file manager package.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Dec 2024
- **Updated:** 28 Aug 2025
- **Also known as:** GHSA-6569-3785-r3v6

## What is CVE-2024-21546?

CVE-2024-21546 is a critical vulnerability in unisharp/laravel-filemanager, published on 18 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Versions of the package unisharp/laravel-filemanager before 2.9.1 are vulnerable to Remote Code Execution (RCE) through using a valid mimetype and inserting the . character after the php file extension. This allows the attacker to execute malicious code.

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

## Which versions are affected by CVE-2024-21546?

2 open source packages ship an affected version, including unisharp/laravel-filemanager.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `unisharp/laravel-filemanager` | Packagist | All versions | 2.9.1 |
| `unisharp/laravel-filemanager` | Packagist | All versions | 2.9.1 |

## How do I fix CVE-2024-21546?

Upgrade unisharp/laravel-filemanager to 2.9.1 or later.

## Is CVE-2024-21546 being exploited?

There is no known exploitation of CVE-2024-21546 in the wild and no public exploit code.

Public exploit code:

- This Python exploit script targets a vulnerable Laravel Filemanager created by UniSharp, which allows authenticated users to bypass file restrictions and upload malicious files. This can lead to Remote Code Execution (RCE) when the uploaded payload is triggered. (github_poc): https://github.com/ajdumanhug/CVE-2024-21546
- This repository contains security assessment tooling, detection templates, and an automated exploit toolkit for identifying and exploiting Unauthenticated Remote Code Execution (RCE) in applications utilizing the `UniSharp/laravel-filemanager` package (Versions `< 2.9.1`). (github_poc): https://github.com/digitalsurgn/CVE-2024-21546

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-21546 and fix it if it is affected.

What it is: CVE-2024-21546 is a critical vulnerability in unisharp/laravel-filemanager, published on 18 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-21546 in the wild and no public exploit code.

Affected packages and fixed versions:
- unisharp/laravel-filemanager (Packagist): affected all versions; fixed in 2.9.1
- unisharp/laravel-filemanager (Packagist): affected all versions; fixed in 2.9.1

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-2024-21546/ (Markdown: https://insights.sbomify.com/CVE-2024-21546/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-21546
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-21546
- OSV: https://osv.dev/vulnerability/CVE-2024-21546

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-21546/
Summaries are generated and may contain mistakes; the official description above is the record.