Is it possible to extract additional fields using the nessus2splunk.py script found within Splunk Add-on for Nessus?
Some useful fields would include the following:
<exploitability_ease>No known exploits are available</exploitability_ease>
Not sure. Are you using Nessus 5.x? what are the fields you want to extract? you may have to update the script in the file to extract new fields.