Version History of WordPress 3.1.3

  • Various security hardening by Alexander Concha.
  • Taxonomy query hardening by John Lamansky.
  • Prevent sniffing out user names of non-authors by using canonical redirects. Props VerĂ³nica Valeros.
  • Media security fixes by Richard Lundeen of Microsoft, Jesse Ou of Microsoft, and Microsoft Vulnerability Research.
  • Improves file upload security on hosts with dangerous security settings.
  • Cleans up old WordPress import files if the import does not finish.
  • Introduce “clickjacking” protection in modern browsers on admin and login pages.