The OAuth Client by DigitialPixies WordPress plugin through 1.1.0 does not sanitize and escapes 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 OAuth Client by DigitialPixies WordPress plugin through 1.1.0 does not have CSRF checks in some places, which could allow attackers to make logged-in users perform unwanted actions.