Does having a script in a button fragment qualify as a potential XSS vulnerability?
Written By
István Gergely-Tárnoki
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Issue
- We can put a Javascript code in the Button fragment's URL field, so it can be executed when we click on the button, like
javascript:alert(document.cookie)
- Can that be a vulnerability to Cross Site Scripting (XSS)?
Resolution
- We allow adding scripts to the button fragment, so the admin (or editors) handling the URL can use that button to trigger Javascript.
-
Fragments on pages must have access to the available HTML features that build up the page, like in this case, where an
<a> tag can include javascript in its href attribute.
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