WP App Bar Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the WP App Bar plugin for WordPress, affecting all versions through 1.5. The issue arises from inadequate input sanitization and output escaping, coupled with a lack of authorization checks in the 'App_Bar_Settings' class constructor. This vulnerability allows unauthenticated attackers to inject arbitrary scripts into various plugin settings, which are executed when a user visits the admin settings page.

Impact

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