The SEO by 10Web WordPress plugin before 1.2.7 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 disallow

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in 10Web SEO by 10Web plugin <= 1.2.9 versions.