### [CVE-2004-2646](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-2646) ![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen) ### Description The addUser function in UserManager.java in Free Web Chat 2.0 allows remote attackers to cause a denial of service (uncaught NullPointerException) via unknown attack vectors that cause the usrName variable to be null. ### POC #### Reference - http://marc.info/?l=bugtraq&m=109164397601049&w=2 #### Github No PoCs found on GitHub currently.