WebAdmin considers the following as hazardous characters, which are not allowed in user inputs.
| (pipe sign)
& (ampersand sign)
; (semicolon sign)
$ (dollar sign)
% (percent sign)
@ (at sign)
' (single apostrophe)
" (quotation mark)
\' (backslash-escaped apostrophe)
\" (backslash-escaped quotation mark)
<> (triangular parenthesis)
() (parenthesis)
+ (plus sign)
CR (Carriage return, ASCII 0x0d)
LF (Line feed, ASCII 0x0a)
, (comma sign)
\ (backslash)
