CVE-2026-13770: Appmysite – WordPress & Woocommerce Mobile App Builder No-Code Android & IOS App Maker

Medium severity, CVSS 6.4. EPSS: 0.2% chance of exploitation in the next 30 days.

The AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via save_ams_license_key AJAX Handler in all versions up to, and including, 3.15.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The save_ams_license_key AJAX handler performs no capability check and no nonce verification, meaning any authenticated user with Subscriber-level access or above can invoke it to store the malicious payload.

Affected products

• Appmysite Appmysite – WordPress & Woocommerce Mobile App Builder No-Code Android & IOS App Maker: up to and including 3.15.3

Published 2026-09-19. Last modified 2026-09-21.