Description
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.
References6
- plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includ…
- plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includ…
- plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includ…
- plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includ…
- plugins.trac.wordpress.org/changeset?reponame=&old=3635325%40ap…
- www.wordfence.com/threat-intel/vulnerabilities/id/34c573f4-bc21…
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 29 · as of 8 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.