Description
WordPress Plugin UpdraftPlus WordPress Backup is prone to a cross-site request forgery vulnerability. Exploiting this issue may allow a remote attacker to perform certain administrative actions and gain unauthorized access to the affected application; other attacks are also possible. WordPress Plugin UpdraftPlus WordPress Backup version 1.23.3 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.23.4 or latest
References
https://patchstack.com/articles/csrf-to-wp-admin-site-wide-xss-in-updraftplus-plugin/
https://plugins.svn.wordpress.org/updraftplus/trunk/readme.txt