by Kastro
Paper/Archive/CVE-2026-4809

CVE-2026-4809

plank laravel-mediable — Unsafe Client MIME Type Handling Can Enable Arbitrary File Upload in plank/laravel-mediable

EPSS 0.9%CVSS 9.8
critical.is priorityof 100
41
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 59.3.593 × 2011.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
laravel-mediable<= 6.4.0–CNA

Scores by source

TuranSec (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
TuranSec (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

writeupgithub.com/plank/laravel-mediablewriteupgithub.com/plank/laravel-mediable/releases/tag/6.4.0