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26 lines
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# Title: Vanilla Tagging Enchanced 1.0.1 Stored XSS
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# Date: 1/6/12
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# Author: Henry Hoggard
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# Author URL: henryhoggard.co.uk
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# Author Twitter: @henryhoggard
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# Software: Vanilla Version 2.0.18.4 + Tagging Enhanced plugin 1.0.1
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# http://vanillaforums.org/download
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# http://vanillaforums.org/addon/tagging-plugin
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This plugin is based on the default tagging plugin that comes with Vanilla. Therefore this is vulnerable to the same attack.
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Create a new thread and post your XSS as tag. I used
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<script>alert('xss')</script>
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You will have to use a proxy / manipulate the form to bypass the max-length on the form.
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Once you have posted the thread, send an administrator or moderator to
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http://target.tld/index.php?p=/vanilla/post/editdiscussion/7
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Where 7 is the thread ID of the thread you just made. The XSS will then trigger.
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You can even use a URL shortener to send the link.
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Note: The URL may be different depending on what category your thread is in.
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