---
id: CVE-2026-4809
title: >-
  plank/laravel-mediable through version 6.4.0 can allow upload of a dangerous
  file type when an application using the package accepts or prefers a
  client-supplied MIME type during file upload handling
summary: >-
  plank/laravel-mediable through version 6.4.0 can allow upload of a dangerous
  file type when an application using the package accepts or prefers a
  client-supplied MIME type during file upload handling. In that configuration,
  a remote atta…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-434
published: '2026-03-26'
updated: '2026-08-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-4809'
references:
  - url: 'https://github.com/plank/laravel-mediable'
    label: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
  - url: 'https://github.com/plank/laravel-mediable/releases/tag/6.4.0'
    label: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
tags:
  - nvd
epss: 0.0087
epssPercentile: 0.57315
ingestedAt: '2026-08-10T12:39:46.387Z'
---

## Overview

plank/laravel-mediable through version 6.4.0 can allow upload of a dangerous file type when an application using the package accepts or prefers a client-supplied MIME type during file upload handling. In that configuration, a remote attacker can submit a file containing executable PHP code while declaring a benign image MIME type, resulting in arbitrary file upload.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.