The GigPress WordPress plugin through 2.3.29 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/585cb2f2-7adc-431f-89d4-4e947f16af18/