Description
WordPress Plugin Advanced Custom Fields PRO is prone to a vulnerability that lets remote attackers inject and execute arbitrary code because the application fails to sanitize user-supplied input before being passed to the unserialize() PHP function. Attackers can possibly exploit this issue to execute arbitrary PHP code within the context of the affected webserver process. WordPress Plugin Advanced Custom Fields PRO version 6.0.7 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin versions 6.1.0, 5.12.5 or latest
References
https://sploitus.com/exploit?id=WPEX-ID:8E5EC88E-0E66-44E4-BBF2-74155D849EDE
https://www.advancedcustomfields.com/blog/acf-6-1-0-released/#security