XSS Attacks

XSS Theory 9 Chapter 3 107

This is the reason why alert message in Web browsers are displayed with the alert func-

tion like this:

alert('Hello the browser! ') ;

while alert messages in Adobe PDF are performed like this:

app. alert('Hello from PDF! ') ;

Type the JavaScript alert expression (Figure 3.16) and click on the OK button.

Figure 3.16 Acrobat JavaScript Editor

Save the file and open it with Adobe Reader or Adobe Acrobat.You should see an alert

message as shown in Figure 3.17.

Figure 3.17 JavaScript Alert Box in PDF

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108 Chapter 3

9

XSS Theory

Now that we