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CERT Coordination Center

cPanel fails to verify input passed to the "user" parameter

Vulnerability Note VU#831534

Original Release Date: 2004-03-16 | Last Revised: 2004-03-17


A remotely exploitable vulnerability in CPanel's password reset and login scripts may allow a remote attacker to gain control of the vulnerable system.


Cpanel is an application that provides the ability to manage accounts and provides an interface to the end users of web hosting sevices. CPanel versions 8.6.0 build 31 though 9.1.0 build 40 contain a remotely exploitable vulnerability. This is due to the failure to verify input specified in the "user" parameter of the URL in the "resetpass" and "login" sections.


A remote attacker may be able to gain root access to the CPanel server.


This is resolved in CPanel Version 9.1.0 build 41.

Vendor Information

Affected   Unknown   Unaffected

CPanel Inc.

Updated:  March 16, 2004



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A



This vulnerability was reported by Arab VieruZ.

This document was written by Jason A Rafail.

Other Information

CVE IDs: None
Severity Metric: 21.16
Date Public: 2004-03-11
Date First Published: 2004-03-16
Date Last Updated: 2004-03-17 16:25 UTC
Document Revision: 21

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