Visual CSS Style Editor < 7.5.4 - Cross-Site Scripting (CVE-2021-24934)

The plugin does not sanitise and escape the wyp_page_type parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue插件在将wyp_page_type参数输出至管理页面之前未进行清理和转义，从而导致反射型跨站脚本攻击问题。