Birthdays Widget <= 1.7.18 - Admin+ Stored Cross Site Scripting

The plugin does not sanitise and escape some of its fields, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks when the unfiltered_html capability is disallowed

As admin, create/edit a Birthday and add the following payload in the Name field: <script>alert(/XSS/)</script>