[Webkit-unassigned] [Bug 12234] Using createContextualFragment to insert a <script> does not cause the script to execute

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=12234





--- Comment #12 from Ryosuke Niwa <rniwa at webkit.org>  2010-11-29 17:05:31 PST ---
(In reply to comment #11)
> rniwa, thanks for being sensitive to creating XSS vulnerabilities.  However, in this case, we're not opening up a new vulnerability.  The attacker can already use other syntactic constructs to execute script, similar to how the attacker can run script via innerHTML even though innerHTML doesn't execute <script> tags.

Ok.  Then we probably should fix this bug to be compatible with Firefox.  Special-casing fragment parsing first seemed strange weird but a number of developers pointed out that the fragment created by createContextualFragment is no different from a fragment created by manually assembling nodes.  And because the script element manually inserted into a fragment runs when the fragment is inserted into a document, we should also run the script parsed by createContextualFragment when the fragment is inserted into a document.

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