[jira] [Assigned] (FLEX-35123) DOM XSS vulnerability in history.js

["Justin Mclean (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLEX-35123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin Mclean reassigned FLEX-35123:
------------------------------------

    Assignee: Justin Mclean

> DOM XSS vulnerability in history.js
> -----------------------------------
>
>                 Key: FLEX-35123
>                 URL: https://issues.apache.org/jira/browse/FLEX-35123
>             Project: Apache Flex
>          Issue Type: Bug
>            Reporter: Aron Nopanen
>            Assignee: Justin Mclean
>             Fix For: Apache Flex 4.16.0
>
>         Attachments: 0001-Address-DOM-XSS-vulnerability.patch
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> Template file history.js contains a DOM XSS vulnerability. While it looks like it would be difficult to exploit, it should be addressed.
> The code in question is in a block specific to ancient versions of Safari (<= 2.0.4), so I propose that block could safely be removed entirely.
> The vulnerable line is:
> getFormElement().innerHTML = '<form name="historyForm" action="'+file+'#' + flexAppUrl + '" method="GET"></form>';
> The variables 'file' and 'flexAppUrl' are being passed unescaped into HTML subcontext.
> I'm attaching a patch that would remove the Safari-specific handling, including the vulnerable line.



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