CVE-2026-4809
Unsafe Client MIME Type Handling Can Enable Arbitrary File Upload in plank/laravel-mediable
- State
- Published
- Severity
- 9.3 Critical
- Published
- Mar 26, 2026
- Updated
- Aug 10, 2026
- Reserved
- Mar 25, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | TuranSec |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | TuranSec |
| 2.0 | 10.0 High | AV:N/AC:L/Au:N/C:C/I:C/A:C | TuranSec |
Weaknesses
- CWE-434 Unrestricted Upload of File with Dangerous Type
Affected Products
| Product | Versions |
|---|---|
laravel-mediableplank |
|
References
- Project repositorythird-party-advisory
- Release 6.4.0third-party-advisory
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