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TI-2026-04194 Aliases CVE-2026-4809GHSA-2w6q-cfjg-6mjp

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

Priority MEDIUM 50CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.

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 attacker can submit a file containing executable PHP code while declaring a benign image MIME type, resulting in arbitrary file upload.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00886 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
planklaravel-mediableup to 6.4.0—No fix listedCNA
  • laravel-mediable Vendorplank Affected up to 6.4.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4809
  2. 2026-10-03 Alias added: GHSA-2w6q-cfjg-6mjp

References

Advisory 2

  • TI-2026-62940 Laravel-Mediable 7.0.0 < 7.0.2 RCE via .pht File Upload CVSS 4.0CRITICAL 9.3
  • TI-2026-36804 Laravel-Mediable < 7.0.0 Path Traversal via File::sanitizePath() CVSS 4.0HIGH 8.7
  • TI-2026-36806 Laravel-Mediable < 7.0.0 File Upload RCE via Extension Bypass CVSS 4.0HIGH 7.7
  • TI-2026-36805 Laravel-Mediable < 7.0.0 Stored XSS via SVG File Upload CVSS 4.0MEDIUM 5.3
  • TI-2026-36803 Laravel-Mediable < 7.0.0 SSRF via RemoteUrlAdapter URL Handling CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences