Active scanner rules (beta) version 51

Changed

• The following scan rules now include example alert functionality for documentation generation purposes (Issue 6119):
  • Backup File Disclosure
  • Httpoxy - Proxy Header Misuse
  • Anti-CSRF Tokens Check
  • HTTP Parameter Pollution
  • Cross-Domain Misconfiguration
• Alerts from the HTTP Parameter Pollution scan rule are now raised with Low confidence.
• Updated reference for scan rules (Issue 8262):
  • Session Fixation
  • Cross-Domain Misconfiguration
• Add website alert links to the help page (Issue 8189).