Description
WordPress Plugin Caldera Forms-More Than Contact Forms is prone to an arbitrary file disclosure vulnerability because it fails to properly verify user-supplied input. An attacker can exploit this vulnerability to view local files in the context of the web server process, which may aid in launching further attacks. WordPress Plugin Caldera Forms-More Than Contact Forms version 1.8.1 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.8.2 or latest (for the 1.8 branch) or to 1.7.7 or latest (for the 1.7 branch)
References
https://blog.sucuri.net/2019/03/vulnerability-disclosure-siteground-optimizer-caldera-forms.html