4.56.15.7

  • [Security] subjects of tickets exposed to unauthorized access (#5651)
  • [Security] list of ticket recipients exposed to unauthorized access (#5650)
  • [Security] SQL Injection (#5684)
  • [Security] Security improvements in templates (#5669)
  • [Security] Security improvements in mail templates (#5608)
  • [Fix] Flags in 'online visitors' not visible (#5499)
  • [Fix] Chat transcript does not work (#5673)