EC-Council: Computer Hacking Forensic Investigator(CHFI-V10)
Module 9 : Investigating Web Attacks
         
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QID: 524  
   
%3cscript%3ealert(”XXXXXXXX”)%3c/script%3e is a script obtained from a Cross-Site Scripting attack. What type of encoding has the attacker employed?


 
A:    Double encoding
 
B:    Hex encoding
C:    Unicode
  
D:    Base64
 
         

 
 

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Comunity Comments:

Banwari on 18/05/2025
Opted Answer: B
Correct Answer: URL Encoding (Percent Encoding)

URL encoding replaces unsafe ASCII characters with a "%" followed by two hexadecimal digits.
URLs cannot contain spaces. URL encoding normally replaces a space with a plus (+) sign or with %20.

Hex encoding : each byte (8 bits) can be represented as two hexadecimal digits.

Base64 : Base64 is a binary-to-text encoding, uses set of 64 unique characters to represent binary data in an ASCII string format. The 64 characters include uppercase and lowercase letters, numbers, and two special characters (‘+’ and ‘/’), along with the ‘=’ padding character.
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Chhavi Kaushik on 14/04/2025
Opted Answer: A
A: Double encoding
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