Youngzsoft CMailServer Signup.ASP Cross-Site Scripting Vulnerability

Bugtraq ID:	23360
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Apr 07 2007 12:00AM
Updated:	Apr 09 2007 10:42PM
Credit:	ajann <[email protected]> is credited with discovering this vulnerability.
Vulnerable:	YoungZSoft CMailServer 5.3.4
Not Vulnerable:

Youngzsoft CMailServer Signup.ASP Cross-Site Scripting Vulnerability

Youngzsoft CMailServer is prone to a cross-site scripting vulnerability because the application 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 help the attacker steal cookie-based authentication credentials and launch other attacks.

Youngzsoft CMailServer 5.3.4 is vulnerable to this issue; other versions may also be affected.

Youngzsoft CMailServer Signup.ASP Cross-Site Scripting Vulnerability

To exploit this issue, an attacker must entice an unsuspecting victim into following a malicious URI.

Youngzsoft CMailServer Signup.ASP Cross-Site Scripting Vulnerability

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

Youngzsoft CMailServer Signup.ASP Cross-Site Scripting Vulnerability

References:

• CMailServer Homepage (YoungZSoft)
  
• CmailServer WebMail <= V.5.3.4 (signup) Remote XSS Exploit ([email protected])