WP Table Builder Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the WP Table Builder WordPress plugin, affecting all versions through 2.0.12. The issue arises from inadequate input sanitization and output escaping on user-supplied attributes, particularly within the 'wptb' shortcode. This vulnerability allows authenticated attackers with contributor-level access or higher to inject arbitrary scripts into pages, which are executed when users access those 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.

Reproduction

To reproduce this vulnerability, an authenticated user with contributor-level access or higher can use the 'wptb' shortcode to create a table. By injecting a script into the table's content, the script will be executed when the table is viewed, demonstrating the cross-site scripting vulnerability.

Remediation

Users are advised to update the WP Table Builder plugin to version 2.0.13 or later, where this vulnerability has been patched.