WordPress has release a new version of it’s own script.
Update now with the new version 4.5.3.
Why should i update to version WordPress 4.5.3?
WordPress versions 4.5.2 and earlier are affected by several security issues: redirect bypass in the customizer; two different XSS problems via attachment names; revision history information disclosure; oEmbed denial of service; unauthorized category removal from a post; password change via stolen cookie; and some less secure sanitize_file_name edge cases.