Vulnerability CVE-2021-24292

The Happy Addons for Elementor WordPress plugin before 2.24.0, Happy Addons Pro for Elementor WordPress plugin before 1.17.0 have a number of widgets that are vulnerable to stored Cross-Site Scripting(XSS) by lower-privileged users such as contributors, all via a similar method: The ??Card? widget accepts a ??title_tag? parameter. Although the element control lists a fixed set of possible html tags, it is possible to send a ??save_builder?? request with the ??heading_tag? set to ??script?, and the actual ??title? parameter set to JavaScript to be executed within the script tags added by the ??heading_tag? parameter.