vb.org Archive - Javascript Injection

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- - Javascript Injection (https://vborg.vbsupport.ru/showthread.php?t=81602)

Dean C

05-17-2005 02:18 PM

As another safety precaution you should probably strip on.* attributes :)

Edit: Ah I see you already have ;)

Zero Tolerance

05-17-2005 09:14 PM

Quote:

Originally Posted by filburt1

It looks effective at first glance, but it makes assumptions on HTML that could change at any time.

The HTML will be submitted by users, think of it as posts, but unsubmit it will check then if any elements of JS injections are found, and if so - it will stop and warn them about it, telling them to remove it.

So they have to bypass this security before they can proceed to save the data.

- Zero Tolerance

filburt1

05-17-2005 10:23 PM

My point is the HTML spec changes constantly, and additional methods for inserting scripting may become available.

Zero Tolerance

05-17-2005 11:30 PM

Quote:

Originally Posted by filburt1

My point is the HTML spec changes constantly, and additional methods for inserting scripting may become available.

Ah, true, i know i won't be able to rule out every possible way, but if i can rule out a lot of ways that are mostly known, then it will be more secure.

- Zero Tolerance

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