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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
appmysite:appmysite – wordpress & woocommerce mobile app builder (no-code android & ios app maker)
References 6
https://plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includes/class…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includes/class…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includes/views…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/appmysite/tags/3.15.3/includes/views…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?reponame=&old=3635325%40appmysite&…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/34c573f4-bc21-4a5f-a4…
security@wordfence.com