WordPress CVE-2026-1306
CRITICALCVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
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.
AnalysisAI
Arbitrary file upload in midi-Synth WordPress plugin via 'export' AJAX action.
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RemediationAI
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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External POC / Exploit Code
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