CVE-2022-0402 Superforms < 6.0.4 - Reflected Cross-Site Scripting

The Super Forms - Drag & Drop Form Builder WordPress plugin before 6.0.4 does not escape the bobczypanstwasprawazostalarozwiazana parameter before outputting it back in an attribute via the superlanguageswitcher AJAX action, leading to a Reflected Cross-Site Scripting. The action is also lacking...