Bigwebmaster Guestbook Multiple HTML Injection Vulnerabilities

Bugtraq ID:	17834
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	May 04 2006 12:00AM
Updated:	May 04 2006 07:45PM
Credit:	DrFrancky is credited with the discovery of these vulnerabilities.
Vulnerable:	Bigwebmaster Guestbook 1.02
Not Vulnerable:

Bigwebmaster Guestbook Multiple HTML Injection Vulnerabilities

Bigwebmaster Guestbook is prone to multiple HTML-injection vulnerabilities because the application fails to properly sanitize user-supplied input before using it in dynamically generated content.

Attacker-supplied HTML and script code would be executed in the context of the affected website, potentially allowing an attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user; other attacks are also possible.

Versions 1.02 and prior are vulnerable are reportedly vulnerable.

Bigwebmaster Guestbook Multiple HTML Injection Vulnerabilities

These issues can be exploited through a web client.

Bigwebmaster Guestbook Multiple HTML Injection Vulnerabilities

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

Bigwebmaster Guestbook Multiple HTML Injection Vulnerabilities

References:

• Guestbook Homepage (Bigwebmaster)
  
• bigwebmaster guestbook multiply XSS (Javor Ninov)