Is there one that comes in (.txt, .csv, etc) that I can download for free? I'd like to put together a proof of concept for ExpressJS (NodeJS) tomorrow.
Doubt this is the state of the art, but ModSecurity seems to exist and has rulesets floating around, like this one from OWASP: https://github.com/coreruleset/coreruleset
Here is a random Node binding for libModSecurity I found: https://github.com/manishmalik/Modsecurity-nodejs