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[PHP/Javascrip]Delete cookie set by another domain

Asked by kingpuka,

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kingpuka

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I need to be able to use a script on "http://www.domain1.com" that will delete a cookie stored on your computer that was set by "http://www.domain2.com".

I've tried using the following in php:

setcookie ("cookiename","", time()-3600,"/main/","http://www.domain2.com");

but it isnt working. I guess it wont let me delete it from a different site, even though i told it the site it was coming from.

Please help!

8 answers to this question

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kingpuka

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  LAD said:
That would be a security risk if it allows you to do that. You can't do it.

585713181[/snapback]

Okay...hmm...

Then is it possible to delete all the cookies that are stored on your computer using a javascript or php script?

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kingpuka

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  LAD said:
Nope, again, that would be a BIG security risk. Imagine I'm setting up a page that would delete all of the cookies from Amazon on your computer. You can only modify/delete cookies from the same domain that was used to create them.

585713202[/snapback]

what is the security risk? You can manually delete cookies from your browser, what is the difference with the script?

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Jerry Grey Member

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  kingpuka said:
what is the security risk? You can manually delete cookies from your browser, what is the difference with the script?

585713240[/snapback]

well if you can delete a cookie that was set by other domain, then you can modify the cookie, that the other domain sets. So your website can get information about the person.. Like e-mails address, username, passwords, etc..

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kingpuka

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  gerry.74 said:
well if you can delete a cookie that was set by other domain, then you can modify the cookie, that the other domain sets. So your website can get information about the person.. Like e-mails address, username, passwords, etc..

585713349[/snapback]

ah, but you can view that stuff from your browser. (at least in firefox).

Is there a way to clear all the cookies on your computer, using a script of some sort. I don't want to view any of them, just have a button that when clicked will clear all the cookies stored on your computer.

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