[UNIX] XSS Vulnerability Found in phpBB (Highlight)
From: support@securiteam.com
Date: 11/21/02
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From: support@securiteam.com To: list@securiteam.com Date: 21 Nov 2002 11:31:46 +0200
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XSS Vulnerability Found in phpBB (Highlight)
------------------------------------------------------------------------
SUMMARY
phpBB is one of popular PHP bulletin board systems. A vulnerability in the
viewtopic.php allows remote attackers to insert malicious JavaScript code.
DETAILS
Exploit:
http://phpbb/phpBB/viewtopic.php?t=17071&highlight<Scr*ipt>javascript:alert(document.cookie)</Scr*ipt>
Possible workaround:
Open viewtopic.php and put this code:
$highlight = htmlspecialchars($highlight);
$highlight = PREG_Replace("/[A-Z&.;:()~!@#$%^''*\{\}\/]/i", "",
$highlight);
ADDITIONAL INFORMATION
The information has been provided by <mailto:arabviersus@hotmail.com>
Arab VieruZ.
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