Description
WordPress Plugin 404page-your smart custom 404 error page 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 404page-your smart custom 404 error page version 10.3 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 10.5 or latest