Website Builder by SeedProd < 6.20.3 - Contributor+ Stored Cross-Site Scripting via seedprodnestedmenuwidget Shortcode

Description

The plugin is vulnerable to Stored Cross-Site Scripting via the `seedprodnestedmenuwidget` shortcode due to insufficient input sanitization and output escaping on user-supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts that execute whenever a user accesses an injected page.