WordPress today has issued a security release to WordPress core, which brings PHPMailer to it’s most stable version, while addressing several other vulnerabilities that you can read more about in release notes.
Because you are a The Crowd Digital customer, you do not have to take action at this time. We are currently issuing the security upgrades to all client sites. Once again thank you for trusting us your WordPress maintenance service provider.
Automated security updates like these are part of our promise to deliver a secure WordPress experience.