CVE-2026-4809CWE-434unrestricted-file-upload

CVE-2026-4809

Critical · published March 26, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
66.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01139 · 66.3th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-03-26T15:16Z
References (2)
https://github.com/plank/laravel-mediable · 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://github.com/plank/laravel-mediable/releases/tag/6.4.0 · 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
EPSS history
Timeline
  • 26 MAR 11:03Z
    Unsafe Client MIME Type Handling Can Enable Arbitrary File Upload in plank/laravel-mediable
    cvelistv5