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It’s kind of like Wesley in Princess Bride, it’s mostly dead. It was generally neutralized quickly, but that doesn’t mean that there aren’t still some compromised sites out there. Within a few days of discovery of the flaw, all of the top 1000 websites were updated and safe to use. I haven’t seen recent data, but about six weeks ago slightly less than 2% of websites remained vulnerable. That doesn’t sound like much, but there are a LOT of websites out there. I suspect that number is down to 1% or less now, but I can’t find hard numbers to support that figure. If you have questions about a particular website, you can always use a test site to check for the vulnerability.