Fix found security issues

[AlexOreshkevich]

Fix all security issues found in https://app.codacy.com/gh/rednavis/website/issues?&filters=W3siaWQiOiJMYW5ndWFnZSIsInZhbHVlcyI6W119LHsiaWQiOiJDYXRlZ29yeSIsInZhbHVlcyI6WyJTZWN1cml0eSJdfSx7ImlkIjoiTGV2ZWwiLCJ2YWx1ZXMiOltdfSx7ImlkIjoiUGF0dGVybiIsInZhbHVlcyI6W119XQ==