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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00078.

Exploitation none

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
adminkov midi-Synth unaffected
Version Status Constraints
* affected ≤ 1.1.0

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L110 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L121 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L421 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L492 cve-icon cve-icon
https://www.wordfence.com/threat-intel/vulnerabilities/id/d5b695d7-c690-4748-b218-5699d1aa63bf?source=cve cve-icon cve-icon
History

Wed, 18 Feb 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 16 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Adminkov
Adminkov midi-synth
Wordpress
Wordpress wordpress
Vendors & Products Adminkov
Adminkov midi-synth
Wordpress
Wordpress wordpress

Sat, 14 Feb 2026 06:45:00 +0000

Type Values Removed Values Added
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.
Title midi-Synth <= 1.1.0 - Unauthenticated Arbitrary File Upload via 'export' AJAX Action
Weaknesses CWE-434
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-02-18T20:33:59.039Z

Reserved: 2026-01-21T19:20:30.948Z

Link: CVE-2026-1306

cve-icon Vulnrichment

Updated: 2026-02-18T20:33:55.324Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-14T07:16:10.150

Modified: 2026-02-18T17:52:44.520

Link: CVE-2026-1306

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-16T12:02:04Z

Weaknesses