cPanel up to 9.1 Login Page User cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in cPanel up to 9.1. This issue affects some unknown processing of the component Login Page. This manipulation of the argument User causes cross site scripting. The identification of this vulnerability is CVE-2005-2021. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability classified as problematic was found in cPanel up to 9.1 (Hosting Control Software). Affected by this vulnerability is an unknown functionality of the component Login Page. The manipulation of the argument user with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. As an impact it is known to affect integrity. The summary by CVE is:

Cross-site scripting (XSS) vulnerability in cPanel 9.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the user parameter in the login page.

The bug was discovered 06/22/2005. The weakness was shared 06/20/2005 by abducter (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2005-2021 since 06/21/2005. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 18540 (cPanel cpsrvd.pl user Parameter XSS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses : XSS and running in the context r.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (21084), Exploit-DB (25846), Tenable (18540), SecurityFocus (BID 13996†) and OSVDB (17399†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 18540
Nessus Name: cPanel cpsrvd.pl user Parameter XSS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/20/2005 🔍
06/20/2005 +31 days 🔍
06/20/2005 +0 days 🔍
06/20/2005 +0 days 🔍
06/21/2005 +1 days 🔍
06/21/2005 +0 days 🔍
06/22/2005 +1 days 🔍
06/22/2005 +0 days 🔍
06/27/2005 +5 days 🔍
03/11/2015 +3544 days 🔍
06/03/2025 +3737 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: abducter
Status: Not defined

CVE: CVE-2005-2021 (🔍)
GCVE (CVE): GCVE-0-2005-2021
GCVE (VulDB): GCVE-100-25579
X-Force: 21084
SecurityFocus: 13996 - cPanel User Parameter Cross-Site Scripting Vulnerability
Secunia: 15770 - cPanel cpsrvd.pl Cross-Site Scripting Vulnerability, Less Critical
OSVDB: 17399 - cPanel - User Parameter - Cross-Site Scripting Issue
Vulnerability Center: 8440 - XSS in cPanel 5.0 - 9.1 via \x27login\x27 Page and \x27dohtaccess.html\x27 Page, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/11/2015 11:41
Updated: 06/03/2025 16:36
Changes: 03/11/2015 11:41 (69), 06/06/2019 18:19 (4), 06/03/2025 16:36 (27)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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