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via: https://lobste.rs/s/cms6b8/userdir_urls_like_https_example_org

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      We managed to make a list of domains that are suffixes, why can’t we make a list of domains that are prefixes? Like “hey dipshit, just because a page is in a directory doesn’t mean it’s allowed to access outside of its directory”.

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      the whole article is about how javascript has a bunch of design flaws and security issues, not about userdirs are dangerous

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      so now I know more about javascript’s flaws - where’s the fault of per-user web directories at exactly?

      Would this even be a problem on smaller/restricted (as in invite-only) servers where it’ll be a lot easier for the machine admins to watch for vulnerabilities and stuff in user web dirs?

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        in the article, they claimed that even if all the users are trusted, they cannot be trusted/expected to check for new vulnerabilities in the things they put in their userdir, which would still have javascript making the whole thing insecure.