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EC-Council

312-49V9 · Question #657

During an investigation of an XSS attack, the investigator comes across the term "[a-zA-Z0- 9\%]+" in analyzed evidence details. What is the expression used for?

The correct answer is B. Checks for forward slash used in HTML closing tags, its hex or double-encoded hex equivalent. See the full explanation below for the reasoning.

Question

During an investigation of an XSS attack, the investigator comes across the term "[a-zA-Z0- 9%]+" in analyzed evidence details. What is the expression used for?

Options

  • AChecks for upper and lower-case alphanumeric string inside the tag, or its hex representation
  • BChecks for forward slash used in HTML closing tags, its hex or double-encoded hex equivalent
  • CChecks for opening angle bracket, its hex or double-encoded hex equivalent
  • DChecks for closing angle bracket, hex or double-encoded hex equivalent

How the community answered

(50 responses)
  • A
    12% (6)
  • B
    82% (41)
  • C
    4% (2)
  • D
    2% (1)

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