MyBB 'member.php' and 'newreply.php' Multiple Cross Site Scripting Vulnerabilities

Bugtraq ID:	45496
Class:	Input Validation Error
CVE:	CVE-2010-4522
Remote:	Yes
Local:	No
Published:	Dec 20 2010 12:00AM
Updated:	May 08 2012 09:10PM
Credit:	Aung Khant of YGN Ethical Hacker Group, Myanmar.
Vulnerable:	MyBB MyBB 1.4.10 MyBB MyBB 1.4.9 MyBB MyBB 1.4.8 MyBB MyBB 1.4.7 MyBB MyBB 1.4.6 MyBB MyBB 1.4.5 MyBB MyBB 1.4.3 MyBB MyBB 1.4.2 MyBB MyBB 1.2.14 MyBB MyBB 1.2.12 MyBB MyBB 1.2.2 MyBB MyBB 1.2.1 MyBB MyBB 1.2 MyBB MyBB 1.1.3 MyBB MyBB 1.1 MyBB MyBB 1.6
Not Vulnerable:	MyBB MyBB 1.6.1

MyBB 'member.php' and 'newreply.php' Multiple Cross Site Scripting Vulnerabilities

MyBB is prone to multiple cross-site scripting vulnerabilities because it fails to properly sanitize user-supplied input.

An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks.

MyBB 1.6 and prior versions are vulnerable.

MyBB 'member.php' and 'newreply.php' Multiple Cross Site Scripting Vulnerabilities

Attackers can exploit these issues by enticing an unsuspecting user to follow a malicious URI.

MyBB 'member.php' and 'newreply.php' Multiple Cross Site Scripting Vulnerabilities

Solution:
Vendor updates are available. Please see the references for more information.

MyBB 'member.php' and 'newreply.php' Multiple Cross Site Scripting Vulnerabilities

References:

• MyBB 1.6 <= Cross Site Scripting Vulnerability (Aung Khant)
  
• MyBB 1.6.0 to MyBB 1.6.1 Security Patch (MyBB)
  
• MyBB 1.6.1 Release & 1.4.14 Update (MyBB)
  
• MyBB Homepage (MyBB)