What is “script”?
A script is a type of computer program frequently used in web programming. (Scripting languages include JavaScript, Perl, Tcl, and others). Scripts consist of text commands. Every time the script is instantiated, the commands are interpreted and executed; this is in contrast to compiled languages like C++, in which the text commands are converted to executable code one time, and the executable code is run thereafter. This fact is important in understanding this problem – one of the reasons why script languages are involved in this issue is because script can be entered in any field on a web page that will accept text.