Unijimpe Captcha 'captchademo.php' Cross Site Scripting Vulnerability

Bugtraq ID:	53585
Class:	Input Validation Error
CVE:	CVE-2012-2914
Remote:	Yes
Local:	No
Published:	May 16 2012 12:00AM
Updated:	Mar 19 2015 07:35AM
Credit:	Daniel Godoy
Vulnerable:	Unijimpe Captcha 0
Not Vulnerable:

Unijimpe Captcha 'captchademo.php' Cross Site Scripting Vulnerability

The Unijimpe Captcha 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 can allow the attacker to steal cookie-based authentication credentials and to launch other attacks.

Unijimpe Captcha 'captchademo.php' Cross Site Scripting Vulnerability

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

The following example URI is available:

http://www.example.com/captchademo.php/%22%3E%3Cscript%3Ealert%28%27pwned%27%29%3C/script%3E

Unijimpe Captcha 'captchademo.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].

Unijimpe Captcha 'captchademo.php' Cross Site Scripting Vulnerability

References:

• unijimpe Captcha (unijimpe)
  
• unijimpe homepage (unijimpe)