midi-Synth <= 1.1.0 - Unauthenticated Arbitrary File Upload via 'export' AJAX Action

Wordfence Intelligence   >   Vulnerability Database   >   midi-Synth <= 1.1.0 - Unauthenticated Arbitrary File Upload via 'export' AJAX Action
9.8
Unrestricted Upload of File with Dangerous Type
CVE CVE-2026-1306
CVSS 9.8 (Critical)
Publicly Published February 13, 2026
Last Updated March 6, 2026
Researchers Athiwat Tiprasaharn (Jitlada)
Itthidej Aramsri (Boeing777)
Powpy
Waris Damkham
Peerapat Samatathanyakorn - Thai Team CVE

Description

The midi-Synth plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type and file extension validation in the 'export' AJAX action in all versions up to, and including, 1.1.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible granted the attacker can obtain a valid nonce. The nonce is exposed in frontend JavaScript making it trivially accessible to unauthenticated attackers.

Learn more about Arbitrary File Upload vulnerabilities and how to prevent them.

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Vulnerability Details for midi-Synth

midi-Synth

Software Type Plugin
Software Slug midi-synth (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.0.0, or a newer patched version
Affected Version
  • <= 1.1.0
Patched Version
  • 2.0.0

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