WordPress released 4.5.3 Maintenance and Security update that includes set of important security fixes among the other product improvements. Plesk team also updated WordPress APS in our application catalog . We strongly encourage you to notify your end-users and update sites as soon as possible.
For the Service Providers who use WordPress APS it is needed to install new APS version on server at Home > Tools & Settings > Application Vault
For Plesk 12.x with WordPress Toolkit most of WordPress sites should be updated automatically unless automatic update is disabled - please check the update settings at Home > WordPress .
Some of WordPress installations might became unmanageable by toolkit because of:
- Very old WordPress installaitons that are incompatible with WordPress Toolkit
- End-user changed WordPress Admin password after initail setup
Such installation have to be updated by end-users directly from WordPress web-interface according to the WordPress Update instructions .