📄 CPanel/WHM CRLF Injection / Authentication Bypass / Remote Code Execution

This Metasploit module exploits CVE-2026-41940, a CRLF injection in cPanel/WHMs cpsrvd daemon that allows unauthenticated remote code execution as root. The Basic-auth handler writes the password to the raw session file without stripping newlines. Omitting the ob-part of the session cookie bypass...

cPanel security vulnerabilities

cPanel is a web-based automated hosting platform developed by the cPanel company in the United States. This platform is primarily used for automating the management of websites and servers. cPanel has security vulnerabilities, stemming from improper permission management and insufficient path...

cPanel SQL injection vulnerability

cPanel is a web-based automated hosting platform developed by cPanel Inc. This platform is primarily used for automating the management of websites and servers. cPanel has a SQL injection vulnerability, which stems from insufficient SQL query cleaning in the sqloptimizer tool script. If the slow...

cPanel security vulnerabilities

cPanel is a web-based automated hosting platform developed by the cPanel company in the United States. This platform is primarily used for automating the management of websites and servers. cPanel has security vulnerabilities, which stem from improper permission authorization checks by team...

cPanel Trust Management Vulnerability

cPanel is a web-based automated hosting platform developed by the cPanel company in the United States. This platform is primarily used for automating the management of websites and servers. cPanel has a vulnerability related to trust management, which stems from the disabled SSL verification in t...

cPanel injection vulnerability

cPanel is a web-based automated hosting platform developed by cPanel Inc. This platform is primarily used for automating the management of websites and servers. cPanel has a vulnerability known as “injection attack,” which stems from improper cleaning of the status query parameters in the...

EUVD-2026-29551

Insufficient ownership checks in clientarea.php allow an authenticated client area user to submit requests using another user’s addonId without any ownership validation leading to unauthorized access to the victim's resources and their cPanel account...

CVE-2026-29204

Insufficient ownership check in clientarea.php allows an authenticated client area user to submit requests using another user’s addonId without any ownership validation leading to unauthorized access to the victim's account...

CVE-2026-29204

CVE-2026-29204 concerns insufficient ownership checks in the PHP script clientarea.php, enabling an authenticated client to submit requests using another user’s addonId and access the victim’s resources and their cPanel account. The connected documents confirm this is a high-severity issue with e...

CVE-2026-29204

Insufficient ownership check in clientarea.php allows an authenticated client area user to submit requests using another user’s addonId without any ownership validation leading to unauthorized access to the victim's account...

CVE-2026-29204

Insufficient ownership check in clientarea.php allows an authenticated client area user to submit requests using another user’s addonId without any ownership validation leading to unauthorized access to the victim's account...

CVE-2026-29204

Insufficient ownership check in clientarea.php allows an authenticated client area user to submit requests using another user’s addonId without any ownership validation leading to unauthorized access to the victim's account...

Exploit for Missing Authentication for Critical Function in Cpanel

🚀 CVE-2026-41940 - cPanel/WHM Authentication Bypass Exploit...

CVE-2026-29203

A chmod call in the cPanel Nova plugin's Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path...

PT-2026-40437

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description Insufficient sanitization of SQL queries in the sqloptimizer utility script allows SQL Injections on behalf of the root user if Slow Query logging is enabled...

PT-2026-40319

Name of the Vulnerable Software and Affected Versions WHMCS versions 7.4 through 8.13.2 WHMCS versions 9.0 through 9.0.3 Description Insufficient ownership checks in the 'clientarea.php' endpoint allow an authenticated client area user to submit requests using another user's addonId without...

PT-2026-40438

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description Improper authorization checks of team members privileges allow a team member to escalate privileges to the team owner account. Recommendations At the moment, the...

PT-2026-40440

Name of the Vulnerable Software and Affected Versions cPanel & WHM affected versions not specified Description Improper sanitization of the status query parameter in the '/unprotected/nova error' endpoint allows an unauthenticated attacker to inject arbitrary HTTP headers into the response...

PT-2026-40439

Name of the Vulnerable Software and Affected Versions DNS Cluster affected versions not specified Description SSL verification is disabled in the DNS Cluster system. This allows a malicious server to perform a man-in-the-middle attack, which is a technique where an attacker intercepts communicati...

cPanel CVE-2026-41940 Under Active Exploitation to Deploy Filemanager Backdoor

A threat actor named MrRot13 has been attributed to the exploitation of a recently disclosed critical cPanel flaw to deploy a backdoor codenamed Filemanager on compromised environments. The attack exploits CVE-2026-41940, a vulnerability impacting cPanel and WebHost Manager WHM that could result ...