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Cross site scripting

Thread began 3/23/2010 10:16 pm by james404001 | Last modified 3/24/2010 9:55 am by Ray Borduin | 584 views | 1 replies |


Cross site scripting

Once a user submits a comment using iRite, perhaps one that contains links, formatting options do you handle this when writing to the file and then on redisplaying to the screen.

In other words, do you do any filtering or sanitizing? Does this open your users up to cross site scripting, injection, or other security issues?

I know just enough to ask the questions...probably not well at that, but I am very concerned.

Your guidance is appreciated.

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Ray BorduinWebAssist

If your irite form is protected with a login, then no hackers could be put in a position where they could use them to cross-site script... That is probably the best defense.

If you need to put your form fields in an open area where hackers can play with them, then displaying it later to another user, then you definitely would want to do something to prevent cross-site scripting. In order to take advantage of cross site scripting the hacker has to have access to the form, displayed results, and usually some other user has to be able to view the results for any real harm.

In most situations I'd just suggest protecting the form so that cross site scripting is unlikely to be done by someone with administrative privilages.

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