Name: CVE-2026-41940: Missing Authentication for Critical Function
Creator: Rapid7
Published: 2026-04-29T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-41940, CWE-306, Exploited in the Wild, CISA KEV Exploit, Rapid7 Critical, Metasploit Module, Used with Ransomware, CVSS 9.8, EPSS 0.98527, CISA KEV

Emergent ThreatCVE-2026-41940:cPanel & WHM Authentication BypassBlog ↗

cPanel and WHM versions after 11.40 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.

CVSS Details

CVSS 4.0 Base Score: 9.3 (CRITICAL)
CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Cpanel Whm	—	Upgrade cPanel to the latest version	Apr 30, 2026	Apr 29, 2026
Cpanel Wp2	—	Upgrade cPanel WP Squared to latest available version	Apr 30, 2026	Apr 29, 2026

Prioritise with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence