Zabbix

...G...PS. [DEV-2429] fixed unauthorised file system access when using cURL

Merge in ZBX/zabbix from feature/DEV-2429-6.0 to release/6.0

* commit 'abf345230ee185d61cc0bd70d432fa4b093b8a53':
  ...G...PS. [DEV-2429] fixed unautorized file system access when using curl
  .......PS. [DEV-2429] fixed unautorized file system access in JS preprocessing