Provide references for CVE-2015-9438.
Where can I find more information about CVE-2015-9438?
References are available at: https://wpvulndb.com/vulnerabilities/8247, https://wordpress.org/plugins/display-widgets/#developers, http://cinu.pl/research/wp-plugins/mail_a7012199c9236754edd72786637e5d2d.html.