CVSS v3
9.8
CRITICAL
EPSS Score
27.7%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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
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
Active exploitation of CVE-2026-1306 has not been confirmed. The EPSS score is 27.7%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2026-1306 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.
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Ranked by exploit probability (EPSS).