CVE-2004-2646
The addUser function in UserManager.java in Free Web Chat 2.0 allows remote attackers to cause a...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2004-2646- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2004-2646- Updated
- 2026-11-02
EUVDEUVD-2004-2637 No score
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.
- Record
EUVD-2004-2637- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wjrq-3hqr-vp6g No score
The addUser function in UserManager.java in Free Web Chat 2.0 allows remote attackers to cause a...
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.
- Record
GHSA-wjrq-3hqr-vp6g- Updated
- 2026-11-02
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Free Web Chat Initial Release - UserManager.java Null Pointer Denial of Service | 2004-08-04 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2004-2646 is a medium vulnerability (CVSS 5.0), published December 31, 2004. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.62%, the 89th percentile. No source names a fixed version.
References
marc.info?l=bugtraq&m=109164397601049&w=2
securityfocus.com/bid/10863
securitytracker.com/alerts/2004/Aug/1010851.html
archives.neohapsis.com/archives/fulldisclosure/2004-08/0102.html
osvdb.org/8369
exchange.xforce.ibmcloud.com/vulnerabilities/16893
nvd.nist.gov/vuln/detail/CVE-2004-2646
github.com/advisories/GHSA-wjrq-3hqr-vp6g