CVE-2026-1306

CRITICAL
2026-02-14 [email protected]
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:03 vuln.today
CVE Published
Feb 14, 2026 - 07:16 nvd
CRITICAL 9.8

Tags

WordPress RCE File Upload

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.

Analysis

Arbitrary file upload in midi-Synth WordPress plugin via 'export' AJAX action.

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Remediation

Within 24 hours: Disable or remove the midi-Synth plugin immediately; audit server logs for suspicious file uploads since plugin installation. Within 7 days: Scan the server for backdoors, webshells, and unauthorized files; review file integrity on web root; change all credentials. …

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Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +49
POC: 0

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CVE-2026-1306 vulnerability details – vuln.today
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