---
id: CVE-2026-13770
title: >-
  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.…
summary: >-
  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.…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: appmysite
product: >-
  AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS
  App Maker)
affected:
  - >-
    wordpress_woocommerce_mobile_app_builder_no-code_android_ios_app_maker <=
    3.15.3
published: '2026-09-19'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T13:33:33.387'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-13770'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includes/class-ams-admin-functions.php#L34
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includes/class-ams-admin-functions.php#L67
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includes/views/ams-home.php#L125
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includes/views/ams-home.php#L222
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3635325%40appmysite&new=3635325%40appmysite
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/34c573f4-bc21-4a5f-a44a-779c523c3212?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
epss: 0.00201
epssPercentile: 0.08859
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-19T13:24:12.263777Z'
ingestedAt: '2026-09-19T07:59:56.111Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.