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Template Headinclude XSS Bug Internet Explorer
DR?@M W?@V?R
Join Date: Aug 2002
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DR?@M W?@V?R DR?@M W?@V?R is offline 06-20-2005, 10:00 PM

Taken from vbulletin.com, should be noted when makeing new templates or updateing old ones.

http://www.vbulletin.com/forum/showthread.php?t=143261

In order to work around an XSS bug in Internet Explorer, wherever a page contains <title> tags, the <title> has been moved below the $headinclude section.

For Example

Quote:
<head>
<title>$vboptions[bbtitle]</title>
$headinclude
</head>
Becomes

Quote:
<head>
$headinclude
<title>$vboptions[bbtitle]</title>
</head>
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  #12  
Old 10-10-2005, 11:22 PM
Jenta Jenta is offline
 
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this is a how to for hacks
it tells hack authors proper placement of titles in their hacks
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  #13  
Old 04-04-2009, 06:10 AM
thincom2000 thincom2000 is offline
 
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I'm confused. Is the XSS caused by <title> being the first element in the <head> tag, or is it caused because <script> tags are placed after it in the <head> tag. Is this simply a browser quirk or is it because your $headinclude or intended <script> might be untrustworthy?

As you can see the problem of not fully explaining the attack points, while preventing people from having the knowledge to execute attacks, also prevents coders from being able to prevent them because they don't have all the information, and get ideas such as "I guess I can't place ANY code after the <title> tags but before the </head> tag in ANY web page (not just vB pages)."
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