The White Label CMS WordPress plugin before 2.2.9 does not sanitise and validate the wlcms[_login_custom_js] parameter before outputting it back in the response while previewing, leading to a Reflected Cross-Site Scripting issueCreditsKrzysztof ZającReferenceshttps://wpscan.com/vulnerability/429be4eb-8a6b-4531-9465-9ef0d35c12cchttps://plugins.trac.wordpress.org/changeset/2672615
