Softaculous has announced that it has released WordPress Manager app to help in managing WordPress sits inside WHMCS
WordPress Manager for WHMCS
One main weakness that has been with WHMCS is that you cannot use it to manage WordPress websites admin dashboards unless you go cPanel. Softaculous addresses the problem by providing the ability to install, activate and deactivate plugins and themes within WHMCS. You can also manage WordPress core updates, debug issues, disable wp-cron, manage backups, add users, etc.
To install WordPress Manager in WHMCS, you need a Softaculous Premium version. As of posting this article, Softaculous Premium version costs per server are $24 per year for dedicated servers and $12 per year for VPS servers.
Read more about: WordPress Manager for WHMCS installation