Qubotchat < 1.1.6 – Admin+ Stored XSS

The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

PoC

1. Add a “button” to the chatbot 2. In the “Text This” field, add: ![](/) 3. Reload and see XSS.