The HL Twitter WordPress plugin through 2014.1.18 does not have CSRF check when unlinking twitter accounts, which could allow attackers to make logged in admins perform such actions via a CSRF attack

The HL Twitter WordPress plugin through 2014.1.18 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)

The HL Twitter WordPress plugin through 2014.1.18 does not have CSRF check in place when updating its settings, which could allow attackers to make a logged in admin change them via a CSRF attack