Nexa Blocks WordPress Plugin Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Nexa Blocks plugin for WordPress, affecting all versions through 1.1.0. The issue arises from inadequate input sanitization and output escaping on user-supplied attributes within the Google Maps widget. This vulnerability allows authenticated attackers with contributor-level access or higher to inject arbitrary scripts into pages, which are executed when users access the affected pages.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the page.