use HTML, css and javascript to hack websites

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use HTML, css and javascript to hack websites

Postby JojoGamesDev » Fri Jun 17, 2016 3:13 pm

Hi, my question is, how can I or can I use my, I would say
average/good skills in HTML and css and
some javascript knowledge
to hack into websites and to edit their content like the text on the site?
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Re: use HTML, css and javascript to hack websites

Postby Cool_Fire » Sun Jun 19, 2016 1:29 pm

HTML and CSS are entirely client side markup and layout. There's not normally anything you can do with them that would be too useful.

Javascript can be abused in some cases to do client side attacks. If this is what you're looking for you should read up about XSS and CSRF. Persistent XSS bugs might allow for changing content on a website in the sense that the site the visitors sees is changed by the javascript you inject. However the site as it is produced by the server will not change because of this.

Side note;
There are some cases where a website or service might be running javascript on the serverside too. These are usually NodeJS applications, but this is an entirely different beast.
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