CVEvulnerability
CVE-2026-1306
9.8 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2026-02-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-434
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.
Related
Weakness · CWE (1)
- CWE-434 Unrestricted Upload of File with Dangerous Type weakness
References
- https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L110 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L121 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L421 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L492 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3460788%40midi-synth&new=3460788%40midi-synth&sfp_email=&sfph_mail= plugins.trac.wordpress.org
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d5b695d7-c690-4748-b218-5699d1aa63bf?source=cve www.wordfence.com