ExtCalendar 'upgrade.php' Cross Site Scripting Vulnerability

Bugtraq ID:	38458
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Mar 01 2010 12:00AM
Updated:	Mar 01 2010 12:00AM
Credit:	Gjoko Krstic
Vulnerable:	ExtCalendar ExtCalendar 2.0 beta
Not Vulnerable:

ExtCalendar 'upgrade.php' Cross Site Scripting Vulnerability

ExtCalendar is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input.

An attacker may leverage this issue 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.

ExtCalendar 2.0 beta is vulnerable; other versions may also be affected.

ExtCalendar 'upgrade.php' Cross Site Scripting Vulnerability

Attackers can exploit this issue by enticing an unsuspecting user to follow a malicious URI.

ExtCalendar 'upgrade.php' Cross Site Scripting Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

ExtCalendar 'upgrade.php' Cross Site Scripting Vulnerability

References:

• ExtCalendar Homepage (ExtCalendar)
  
• Security Advisory: ZSL-2010-4928 ExtCalendar 2.0 Beta Remote XSS Vulnerability (ExtCalendar)