Provide references for CVE-2017-18012.
Where can I find more information about CVE-2017-18012?
References are available at: https://wpvulndb.com/vulnerabilities/8990, https://plugins.svn.wordpress.org/z-url-preview/trunk/readme.txt, https://packetstormsecurity.com/files/145218/WordPress-Z-URL-Preview-1.6.1-Cross-Site-Scripting.html, https://wordpress.org/plugins/z-url-preview/#developers, https://wordpress.org/support/topic/z-url-preview-1-6-1-cross-site-scripting/.