Can a json string contain HTML tags with it?

Question

Consider this my json string,

[{
  \"Mat_id\": \"2\",
  \"Mat_Name\": \"Steel\",
  \"Measurement\": \"mm\",
  \"Description\": \"Steel\"
}]

Answer 1

Technically, yes, you can do that... practically, I'd be a bit concerned if there were HTML markup in my data. What else might be in there? Smells like an XSS vulnerability.