The Zalomení WordPress plugin through 1.5 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).
https://wpscan.com/vulnerability/a8a706c6-7f0f-4148-9f6f-40c0ca95dd9a/