All vulnerabilities
CVE-2026-1306

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

adminkov midi-Synth
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationScanner template publicA Nuclei template detects it. Not in the KEV catalogNuclei
Exploit odds (EPSS)4.83%Chance of exploitation activity in the next 30 days, higher than 91% of CVEs. Scored 27 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
Published14 Feb 2026Updated 8 Apr 2026CVE List

What fixes it

No source in this snapshot names a fixed version.

Timeline

  1. 14 Feb 2026, 06:42 UTCPublishedCVE List
  2. 27 Oct 2026, 13:43 UTCExploit code publicGitHub proof-of-concept repositories

Public exploit code and templates 1

  • Scanner templateWordPress midi-Synth <= 1.1.0 - Unauthenticated Arbitrary File UploadNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

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.

Text from CVE List

Affected versions 1

  • midi-Synthaffected: all versions through 1.1.0CVE List

References 6