Description
WordPress Plugin POST SMTP Mailer-Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress 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 POST SMTP Mailer-Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress version 2.0.20 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 2.0.21 or latest
References
https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
https://pagely.com/blog/wordpress-security-updates-february-2021/
https://plugins.svn.wordpress.org/post-smtp/trunk/readme.txt