Useful Tab Block Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Useful Tab Block – Responsive & AMP-Compatible plugin for WordPress, affecting all versions through 1.3.2. The issue arises from inadequate input sanitization and output escaping, allowing authenticated attackers with Contributor-level access or higher to inject arbitrary scripts into pages. These scripts execute when a user views the affected page.

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.