The Page Builder by SiteOrigin WordPress plugin before 2.38.0 does not sanitize or escape a widget property before storing it and outputting it in the page builder interface, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks against higher-privileged users who open the affected post in the editor.

The Page Builder by SiteOrigin WordPress plugin before 2.38.0 does not restrict the query arguments users can add to its Post Loop widget or limit the loop to posts they are allowed to read, which could allow users with the contributor role and above to read the content of other users' draft, pending, scheduled and private posts and pages.

Editor PHP Object Injection in Page Builder by SiteOrigin <= 2.36.0 versions.