Step 1 : Please follow the below steps to install the exploit scanner
Reference : https://configserver.com/cxs-installer/
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cd /usr/src
rm -f cxs*
wget https://download.configserver.com/cxsinstaller.tgz
tar -xzf cxsinstaller.tgz
perl cxsinstaller.pl ipv4
rm -fv cxsinstaller.*
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Step 2 : After the installtion, login the server via WHM and access the UI for EXPloit scanner
Step 3 : Click on setup and select all the recommended steps
Step 4 : Disable the cxs ModSecurity Scanning in Scanner
Step 5 : Once completed click on save.
NOTE : Verify the steps after completing above steps with another shared server.