XSS vulnerability in CruxPA

[advisory@xxxxxxxxxxx]

Vulnerability ID: HTB22452
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_cruxpa_3.html
Product: CruxPA
Vendor: CruxSoftware
Vulnerable Version: 2.00 and Probably Prior Versions
Vendor Notification: 21 June 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Medium 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing 
(http://www.htbridge.ch/) 

Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerability exists due to failure in the "/newappointment.php" script to 
properly sanitize user-supplied input in multiple variables. Successful 
exploitation of this vulnerability could result in a compromise of the 
application, theft of cookie-based authentication credentials, disclosure or 
modification of sensitive data.

An attacker can use browser to exploit this vulnerability. The following PoC is 
available:


1) Just add "<script>alert(document.cookie)</script>" value to all fileds in 
form.
2) Open this url: http://host/
3) Open this url: http://host/calendar.php?ID=$ID