The “All-in-One Addons for Elementor – WidgetKit” WordPress Plugin before 2.3.10 has several widgets that are vulnerable to stored Cross-Site Scripting (XSS) by lower-privileged users such as contributors, all via a similar method.
https://www.wordfence.com/blog/2021/04/recent-patches-rock-the-elementor-ecosystem/
https://wpscan.com/vulnerability/0c96f3a1-d192-481f-9035-5393f4aadc19