Description
WordPress Plugin Easy Form Builder is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to properly verify user-supplied input. An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible. WordPress Plugin Easy Form Builder version 1.0 is vulnerable.
Remediation
Disable and remove the plugin until a fix is available
References
https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/Easy%20Form%20Builder.md
https://wordpress.org/plugins/easy-form-builder-by-bitware/#description