The Easy Google Maps WordPress plugin before 1.9.32 does not escape the tab parameter before outputting it back in an attribute in the admin dashboard, leading to a Reflected Cross-Site Scripting
The Google Maps Easy WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/modules/marker_groups/views/tpl/mgrEditMarkerGroup.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 1.9.33. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.
The Easy Google Maps plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.11.7. This is due to missing or incorrect nonce validation on the AJAX action handler. This makes it possible for unauthenticated attackers to executes AJAX actions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
The Easy Google Maps plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's file upload feature in all versions up to, and including, 1.11.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.