CVE-2005-2021

cPanel <= 9.1 - Cross-Site Scripting via Login Page User Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2005-2021. PoCs published by [email protected].

AI-analyzed exploit summary The provided text describes a cross-site scripting (XSS) vulnerability in cPanel's login page due to insufficient sanitization of the 'user' parameter. It includes a proof-of-concept URL demonstrating the vulnerability but does not contain executable exploit code.

Description

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.

Exploits (1)

exploitdb WRITEUP VERIFIED
by [email protected] · textwebappsphp
https://www.exploit-db.com/exploits/25846

The provided text describes a cross-site scripting (XSS) vulnerability in cPanel's login page due to insufficient sanitization of the 'user' parameter. It includes a proof-of-concept URL demonstrating the vulnerability but does not contain executable exploit code.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Theoretical
Target: cPanel (version not specified)
No auth needed
Prerequisites: Access to the cPanel login page
MITRE ATT&CK
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Exploit, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/13996

Scores

EPSS 0.0270
EPSS Percentile 84.2%

Details

Status published
Products (12)
cpanel/cpanel 5.0
cpanel/cpanel 5.3
cpanel/cpanel 6.0
cpanel/cpanel 6.2
cpanel/cpanel 6.4
cpanel/cpanel 6.4.1
cpanel/cpanel 6.4.2
cpanel/cpanel 6.4.2_stable_48
cpanel/cpanel 7.0
cpanel/cpanel 8.0
... and 2 more
Published Jun 20, 2005
Tracked Since Feb 18, 2026