The Social Icons Widget & Block by WPZOOM WordPress plugin before 4.2.18 does not sanitise and escape some of its Widget settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfilteredhtml capability is disallowed (for example in multisite setup)

The Icon Widget WordPress plugin before 1.3.0 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.