In Beaver Themer, attackers can bypass conditional logic controls (for hiding content) when viewing the post archives. Exploitation requires that a Themer layout is applied to the archives, and that the post excerpt field is not set.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-29707
https://docs.wpbeaverbuilder.com/beaver-builder/developer/conditionally-hidden-content/