Prime WAF by Valtes
You can even create your own custom defense settings to suit your site, for more protection!
In addition to the basic settings, you can deal with flexible attacks.
Examples of attacks that Prime WAF can handle
SQL Injection
OS Commands Injection
LDAP Injection
Xpath Injection
SSI injection
HTTP header Injection
Cross-site Scripting
Cross-site Request Forgery
Remote File Include
Local files Include
Path traversal Insecure
Deserialization