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XSS vulnerability in CruxPA

Description

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