The Leyka WordPress plugin before 3.30.4 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)
El complemento Leyka WordPress anterior a 3.30.4 no sanitiza ni escapa a algunas de sus configuraciones, lo que podría permitir a usuarios con privilegios elevados, como el administrador, realizar ataques de Cross-Site Scripting almacenados incluso cuando la capacidad unfiltered_html no está permitida (por ejemplo, en una configuración multisitio).
The Leyka plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 3.30.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled. NOTE: The problem was communicated to the developer on May 30, 2023, and was patched via a hot-fix in version 3.30.3 instead of a new release being rolled out.
