Responsive Tabs For WPBakery Page Builder Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Responsive Tabs For WPBakery Page Builder WordPress plugin, affecting versions through 1.1. The issue arises because the plugin fails to properly validate and escape certain shortcode attributes before rendering them on pages or posts. This flaw enables users with a contributor role or higher to execute stored cross-site scripting attacks.

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.

Reproduction

To reproduce this vulnerability, a user with a contributor role or higher can embed a shortcode that includes unvalidated attributes, such as JavaScript event handlers or inline styles, into a post or page. The injected script will then be executed when the post or page is viewed.