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Third-Party Web Content is Unsafe, Including CSS. Don't Use It.

posted by Fnord666 on Wednesday February 28 2018, @06:07PM   Printer-friendly
from the just-use-lynx-and-elm dept.

canopic jug writes:

Jake Archibald writes in his blog about the bigger problem presented by importing third-party content into web pages. Even CSS is a problem as a CSS keylogger demo showed the other day.

A few days ago there was a lot of chatter about a 'keylogger' built in CSS.

Some folks called for browsers to 'fix' it. Some folks dug a bit deeper and saw that it only affected sites built in React-like frameworks, and pointed the finger at React. But the real problem is thinking that third party content is 'safe'.

While most are acutely aware, yet ignore, the danger presentd by third-party javascript and javascript in general, most forget about CSS. Jake reminds us and walks through quite a few exampled of how CSS can be misused by third-parties exporting it.

Source : Third party CSS is not safe

Original Submission

 
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  • (Score: 2) by requerdanos on Wednesday February 28 2018, @10:13PM

    by requerdanos (5997) Subscriber Badge on Wednesday February 28 2018, @10:13PM (#645436) Journal

    many web "developers" rely on 3rd party code as a crutch. If they did not use 3rd party content they would have to write the code themselves.

    Well, I believe that's because of this pervasive phone-home mindset.

    Before that mindset took hold here, it was "If they did not use third party content then they would have to copy and paste the code into their own site."

    Since having things work autonomously on the server of the website is no longer important, most code doesn't work nowadays unless it's in touch with the mothership.

    I am kind of anti-mothership. Snowden is a hero.

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