CVE-2026-1306 — AI Deep Analysis Summary

🚨 **Essence**: Arbitrary File Upload via missing validation. 💥 **Consequences**: Attackers can upload malicious files (e.g., Webshells) to the server.…

🛡️ **Root Cause**: **CWE-434** (Unrestricted Upload of File with Dangerous Type). The plugin fails to validate **file types** and **extensions** during the 'export' AJAX action.…

📦 **Affected**: WordPress Plugin **midi-Synth**. 📅 **Versions**: **1.1.0 and earlier**. 🏢 **Vendor**: adminkov. If you use this plugin for MIDI synthesis on WordPress, you are at risk.

💀 **Attacker Capabilities**: Unauthenticated access allows uploading **any file**. Once uploaded, attackers can execute **Remote Code (RCE)**.…

⚠️ **Threshold**: **Low**. Requires **No Authentication** (PR:N). However, exploitation requires obtaining a valid **nonce** exposed in frontend JavaScript.…

🔓 **Exploitation**: **Yes**. Public PoCs exist on GitHub (e.g., richardpaimu34/CVE-2026-1306). Nuclei templates are also available for automated scanning. Wild exploitation is highly likely due to low barrier.

🔍 **Self-Check**: Scan for **midi-Synth plugin** version ≤ 1.1.0. Look for the `export` AJAX endpoint. Use tools like **Nuclei** with the specific CVE template.…

🩹 **Fix**: Update to the latest version of **midi-Synth** plugin immediately. The vendor (adminkov) has released fixes. Check the WordPress plugin repository for updates. Patching resolves the validation flaw.

🚧 **No Patch Workaround**: **Disable** the midi-Synth plugin immediately. Remove it if not essential.…

🔥 **Urgency**: **CRITICAL**. CVSS 9.8. Unauthenticated RCE. Deploy patches or mitigations **IMMEDIATELY**.…