Description
WordPress Plugin Advanced Popups 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 Advanced Popups version 1.1.1 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.1.2 or latest
References
https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/
https://plugins.svn.wordpress.org/advanced-popups/trunk/README.txt