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Known Exploited Vulnerability
9.8
CRITICAL CVSS 3.1
CVE-2026-41940
WebPros cPanel & WHM and WP2 (WordPress Squared) Missing Authentication for Critical Function Vulnerability - [Actively Exploited]
Overview
Description

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.

Details
INFO

Published Date :

April 29, 2026, 4:16 p.m.

Last Modified :

May 4, 2026, 6:09 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

WebPros cPanel & WHM (WebHost Manager) and WP2 (WordPress Squared) contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.

Required Action :

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Known Ransomware Campaign Use:

Known Detected May 06, 2026

Notes :

https://support.cpanel.net/hc/en-us/articles/40073787579671-cPanel-WHM-Security-Update-04-28-2026 ; https://docs.cpanel.net/release-notes/release-notes/ ; https://docs.wpsquared.com/changelogs/versions/changelog/#13617 ; https://nvd.nist.gov/vuln/detail/CVE-2026-41940"

Impact
Affected Products

The following products are affected by CVE-2026-41940 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Cpanel cpanel
2 Cpanel whm
3 Cpanel wp_squared
: Total Affected Vendor : 1 | Products : 3
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 CRITICAL [email protected]
CVSS 3.1 CRITICAL MITRE-CVE
CVSS 4.0 CRITICAL 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 CRITICAL [email protected]
Solution
Update cPanel and WHM to a patched version to fix authentication bypass.
  • Update cPanel and WHM to a patched version.
  • Verify successful update.
Public PoC/Exploit Available at Github

CVE-2026-41940 has a 119 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-41940.

URL Resource
https://docs.cpanel.net/release-notes/release-notes Release Notes
https://docs.wpsquared.com/changelogs/versions/changelog/#13617 Release Notes
https://support.cpanel.net/hc/en-us/articles/40073787579671-cPanel-WHM-Security-Update-04-28-2026 Vendor Advisory
https://www.namecheap.com/status-updates/ongoing-critical-security-vulnerability-in-cpanel-april-28-2026 Third Party Advisory
https://www.vulncheck.com/advisories/cpanel-and-whm-authentication-bypass-via-login-flow Third Party Advisory
https://labs.watchtowr.com/the-internet-is-falling-down-falling-down-falling-down-cpanel-whm-authentication-bypass-cve-2026-41940/ Exploit Third Party Advisory
https://www.bleepingcomputer.com/news/security/critrical-cpanel-flaw-mass-exploited-in-sorry-ransomware-attacks/ Press/Media Coverage
https://github.com/watchtowrlabs/watchTowr-vs-cPanel-WHM-AuthBypass-to-RCE.py Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41940 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-41940 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-41940 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
asdasddqwdq29-a11y/asdasddqwdq29-a11y

Security research portfolio and responsible disclosure profile

Updated: 2 days, 9 hours ago
0 stars 0 fork 0 watcher
Born at : June 6, 2026, 1:24 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
asdasddqwdq29-a11y/CVE-2026-41940

Redacted cPanel/WHM authentication bypass analysis and authorized checker

Updated: 2 days, 10 hours ago
0 stars 0 fork 0 watcher
Born at : June 6, 2026, 12:49 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
tc4dy/CVE-2026-24061-PoC-Exploit

🚀 CVE-2026-24061 - GNU inetutils-telnetd Auth Bypass Exploit - Full Control 💥 CRLF injection via NEW_ENVIRON leads to auth bypass & instant root shell. ✅ Single/Mass exploitation, multi-threading, custom port/user, pipe mode, session keep-alive, colored output, retries, timeout support. ⚡ Python & Bash versions. Critical CVSS 9.8.

Python Shell

Updated: 1 day, 9 hours ago
0 stars 0 fork 0 watcher
Born at : June 6, 2026, 12:38 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
yurahshell/CVE-2026-41940

None

Python

Updated: 3 days, 1 hour ago
0 stars 0 fork 0 watcher
Born at : June 5, 2026, 9:20 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
olofsatte/CVE-2026-41940-PoC

CVE-2026-41940 is a critical authentication bypass vulnerability affecting cPanel and WHM. This repository is designed to demonstrate its Proof-Of-Concept

cve cve-2026-41940 cve-2026-41940-poc vulnerability

Python

Updated: 2 days, 12 hours ago
18 stars 18 fork 18 watcher
Born at : June 4, 2026, 5:17 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
xbox360badupdateexploitAIOstealth/private

Modular web vulnerability scanner console (env/config/backups/git exposure + injection + policy engine + integrations).

HTML CSS JavaScript Shell

Updated: 1 day, 20 hours ago
1 stars 0 fork 0 watcher
Born at : June 4, 2026, 3:32 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
dikurdikur/indo-cpanel-exploit

Automated cPanel exploitation toolkit for authorized security testing

Go Shell

Updated: 1 week, 6 days ago
0 stars 0 fork 0 watcher
Born at : May 26, 2026, 7:59 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
sardine-web/Automated-scanner-CVE-2026-41940

Automated scanner & post-exploitation toolkit for CVE-2026-41940 — cPanel & WHM root authentication bypass via session-file CRLF injection

Python

Updated: 2 weeks, 1 day ago
0 stars 0 fork 0 watcher
Born at : May 24, 2026, 11:10 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
BlackRainSentinel/cPanel-patch-radar

cPanel/WHM CVE auditor & patcher — May 2026 batch, zero dependencies.

Shell

Updated: 2 weeks ago
2 stars 0 fork 0 watcher
Born at : May 24, 2026, 9:31 a.m. This repo has been linked 8 different CVEs too.
Profile Photo
xxconi/CVE-2026-41940

Private exploit

Python

Updated: 2 weeks, 2 days ago
0 stars 0 fork 0 watcher
Born at : May 23, 2026, 9:42 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
XZ1r0/cve-2026-poc-collection

CVE-2026 PoC Collection - 128 PoCs covering 84 CVEs

Python Dockerfile Shell Java C Makefile Objective-C Rust C++ Go

Updated: 2 weeks, 2 days ago
0 stars 0 fork 0 watcher
Born at : May 21, 2026, 3:15 p.m. This repo has been linked 8 different CVEs too.
Profile Photo
sixteenprojects/mitre-ttp-mapper

MITRE ATT&CK TTP Overlap Mapper

Python

Updated: 2 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : May 21, 2026, 4:28 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
chud-lori/ngehe

Pentest CLI for authorized assessments, HTB boxes, and CTFs. ngehe discovers a target's attack surface — web + non-HTTP services — and tests for the OWASP Top 10 plus common HTB attack vectors (SSH, FTP, SMB, LDAP/AD, Kerberos, default credentials) from a single binary

Go Shell Dockerfile

Updated: 3 days, 5 hours ago
0 stars 0 fork 0 watcher
Born at : May 20, 2026, 5 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
exploitintel/eip-pocs-and-cves

Proof-of-concept exploits and reproduction labs for CVEs analyzed by the Exploit Intelligence Platform

cves exploits proof-of-concept

Shell Python Java JavaScript Ruby C Go C# PHP GDB

Updated: 2 weeks, 5 days ago
0 stars 0 fork 0 watcher
Born at : May 19, 2026, 11:39 p.m. This repo has been linked 81 different CVEs too.
Profile Photo
bob-reis/claude-pentest-skills

Coleção de skills de segurança ofensiva para Claude Code metodologia PTES completa com AWS/IAM (WorstAssume), pfSense (27+ CVEs), Active Directory, Web Attacks, Palo Alto PAN-OS, AI Agent Audit e LLM Security Testing. Integra AIRecon, Watchtower e hexstrike-local MCP

Python

Updated: 2 weeks, 4 days ago
2 stars 1 fork 1 watcher
Born at : May 18, 2026, 7:21 p.m. This repo has been linked 9 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-41940 vulnerability anywhere in the article.

  • Proofpoint
More CVEs, Same Playbook: 2026 Vulnerability Exploitation in the Wild

Executive Summary The CVE Landscape Has Changed. The Threat Actors Haven't. Proofpoint's dual telemetry streams — targeted attack visibility covering hundreds of millions of messages daily, and a glob ... Read more

Published Date: May 27, 2026 (1 week, 5 days ago)
  • The Hacker News
Claude Mythos AI Finds 10,000 High-Severity Flaws in Widely Used Software

Anthropic on Friday disclosed that Project Glasswing has helped uncover more than 10,000 high- or critical-severity vulnerabilities across some of the most "systemically" important software across the ... Read more

Published Date: May 23, 2026 (2 weeks, 2 days ago)
  • The Hacker News
LiteSpeed cPanel Plugin CVE-2026-48172 Exploited to Run Scripts as Root

A maximum-severity security vulnerability impacting LiteSpeed User-End cPanel Plugin has come under active exploitation in the wild. The flaw, tracked as CVE-2026-48172 (CVSS score: 10.0), relates to ... Read more

Published Date: May 23, 2026 (2 weeks, 2 days ago)
  • The Hacker News
Drupal Core SQL Injection Bug Actively Exploited, Added to CISA KEV

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a recently patched critical security flaw impacting Drupal Core to its Known Exploited Vulnerabilities (KEV) catalog, based o ... Read more

Published Date: May 23, 2026 (2 weeks, 2 days ago)
  • The Hacker News
CISA Adds Exploited Langflow and Trend Micro Apex One Vulnerabilities to KEV

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added two security flaws impacting Langflow and Trend Micro Apex One to its Known Exploited Vulnerabilities (KEV) catalog, ... Read more

Published Date: May 22, 2026 (2 weeks, 3 days ago)
  • The Hacker News
Cisco Patches CVSS 10.0 Secure Workload REST API Flaw Enabling Data Access

Cisco has rolled out updates for a maximum-severity security flaw impacting Secure Workload that could allow an unauthenticated, remote attacker to access sensitive data. Tracked as CVE-2026-20223 (CV ... Read more

Published Date: May 22, 2026 (2 weeks, 3 days ago)
  • The Hacker News
Microsoft Warns of Two Actively Exploited Defender Vulnerabilities

Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild. The former, tracked as CVE-2026-41091, is rated 7.8 on the ... Read more

Published Date: May 21, 2026 (2 weeks, 4 days ago)
  • The Hacker News
9-Year-Old Linux Kernel Flaw Enables Root Command Execution on Major Distros

Cybersecurity researchers have disclosed details of a vulnerability in the Linux kernel that remained undetected for nine years. The vulnerability, tracked as CVE-2026-46333 (CVSS score: 5.5), is a ca ... Read more

Published Date: May 21, 2026 (2 weeks, 4 days ago)
  • The Hacker News
Highly Critical Drupal Core Flaw Exposes PostgreSQL Sites to RCE Attacks

Drupal has released security updates for a "highly critical" security vulnerability in Drupal Core that could be exploited by attackers to achieve remote code execution, privilege escalation, or infor ... Read more

Published Date: May 21, 2026 (2 weeks, 4 days ago)
  • The Hacker News
Microsoft Releases Mitigation for YellowKey BitLocker Bypass CVE-2026-45585 Exploit

Microsoft on Tuesday released a mitigation for a BitLocker bypass vulnerability named YellowKey following its public disclosure last week. The zero-day flaw, now tracked as CVE-2026-45585, carries a C ... Read more

Published Date: May 20, 2026 (2 weeks, 5 days ago)
  • The Hacker News
SEPPMail Secure E-Mail Gateway Vulnerabilities Enable RCE and Mail Traffic Access

Critical security vulnerabilities have been disclosed in SEPPMail Secure E-Mail Gateway, an enterprise-grade email security solution, that could be exploited to achieve remote code execution and enabl ... Read more

Published Date: May 19, 2026 (2 weeks, 6 days ago)
  • The Hacker News
MiniPlasma Windows 0-Day Enables SYSTEM Privilege Escalation on Fully Patched Systems

Chaotic Eclipse, the security researcher behind the recently disclosed Windows flaws, YellowKey and GreenPlasma, has released a proof-of-concept (PoC) for a Windows privilege escalation zero-day flaw ... Read more

Published Date: May 18, 2026 (3 weeks ago)
  • The Hacker News
NGINX CVE-2026-42945 Exploited in the Wild, Causing Worker Crashes and Possible RCE

A newly disclosed security flaw impacting NGINX Plus and NGINX Open has come under active exploitation in the wild, days after its public disclosure, according to VulnCheck. The vulnerability, tracked ... Read more

Published Date: May 17, 2026 (3 weeks, 1 day ago)
  • Daily CyberSecurity
CVSS 10 Alert: Quest KACE SMA Auth Bypass Exploited to Hijack Managed Endpoints

Detailed listing of tools and scripts within the exposed C2 directory | Image: Hunt Cybersecurity researchers have just dropped a report on a critical “management plane” threat that has spent the last ... Read more

Published Date: May 16, 2026 (3 weeks, 2 days ago)
  • CybersecurityNews
79 Chrome Vulnerabilities Patched, Including 14 Critical One’s – Update Now!

Google has rolled out a massive security update for its Chrome browser, sealing a staggering 79 vulnerabilities before threat actors can exploit them. With 14 of these flaws rated as critical, browsin ... Read more

Published Date: May 15, 2026 (3 weeks, 3 days ago)
  • The Cyber Express
Microsoft May 2026 Patch Tuesday Fixes 120 Vulnerabilities, No Zero-Day Exploits Reported

Microsoft has rolled out its May 2026 Patch Tuesday security updates, delivering fixes for approximately 120 vulnerabilities across Windows, Microsoft Office, networking services, and enterprise platf ... Read more

Published Date: May 13, 2026 (3 weeks, 5 days ago)
  • CybersecurityNews
PoC Exploit Released for Android Zero-Click Vulnerability that Enables Remote Shell Access

In a chilling blow to mobile security, Google’s May 2026 Android Security Bulletin has unmasked a catastrophic zero-click vulnerability lurking within the core Android System. The CVE-2026-0073 flaw i ... Read more

Published Date: May 12, 2026 (3 weeks, 6 days ago)
  • CybersecurityNews
New BitUnlocker Downgrade Attack on Windows 11 Allows Access to Encrypted Disks in 5 Minutes

A new tool, BitUnlocker, reveals a practical downgrade attack against Microsoft’s BitLocker encryption, allowing attackers with physical access to decrypt protected volumes on patched Windows 11 machi ... Read more

Published Date: May 12, 2026 (3 weeks, 6 days ago)
  • CybersecurityNews
Hackers Abuse CVE-2026-41940 to Take Over cPanel and WHM Servers

A fatal authentication bypass vulnerability is actively affecting cPanel and WebHost Manager (WHM) servers worldwide. Tracked as CVE-2026-41940 and bearing an apocalyptic maximum severity score of 9.8 ... Read more

Published Date: May 12, 2026 (3 weeks, 6 days ago)
  • The Hacker News
cPanel CVE-2026-41940 Under Active Exploitation to Deploy Filemanager Backdoor

A threat actor named Mr_Rot13 has been attributed to the exploitation of a recently disclosed critical cPanel flaw to deploy a backdoor codenamed Filemanager on compromised environments. The attack ex ... Read more

Published Date: May 11, 2026 (4 weeks ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-41940 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    May. 04, 2026

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 11.40 up to (excluding) 86.0.41 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 88.0.0 up to (excluding) 110.0.97 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 112.0.0 up to (excluding) 118.0.63 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 120.0.0 up to (excluding) 126.0.54 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 128.0.0 up to (excluding) 130.0.19 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 132.0.0 up to (excluding) 132.0.29 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 134.0.0 up to (excluding) 134.0.20 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 136.0.0 up to (excluding) 136.0.5 OR *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 11.40 up to (excluding) 86.0.41 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 88.0.0 up to (excluding) 110.0.97 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 112.0.0 up to (excluding) 118.0.63 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 128.0.0 up to (excluding) 130.0.19 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 132.0.0 up to (excluding) 132.0.29 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 134.0.0 up to (excluding) 134.0.20 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 136.0.0 up to (excluding) 136.0.5 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 120.0.0 up to (excluding) 124.0.35 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 126.0.1 up to (excluding) 126.0.54
    Changed CPE Configuration OR *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 11.40 up to (excluding) 86.0.41 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 112.0.0 up to (excluding) 118.0.63 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 120.0.0 up to (excluding) 126.0.54 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 128.0.0 up to (excluding) 130.0.19 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 132.0.0 up to (excluding) 132.0.29 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 134.0.0 up to (excluding) 134.0.20 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 136.0.0 up to (excluding) 136.0.5 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 88.0.0 up to (excluding) 110.0.97 OR *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 11.40 up to (excluding) 86.0.41 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 112.0.0 up to (excluding) 118.0.63 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 128.0.0 up to (excluding) 130.0.19 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 132.0.0 up to (excluding) 132.0.29 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 134.0.0 up to (excluding) 134.0.20 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 136.0.0 up to (excluding) 136.0.5 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 88.0.0 up to (excluding) 110.0.97 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 120.0.0 up to (excluding) 124.0.35 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 126.0.1 up to (excluding) 126.0.54
    Added Reference Type CVE: https://labs.watchtowr.com/the-internet-is-falling-down-falling-down-falling-down-cpanel-whm-authentication-bypass-cve-2026-41940/ Types: Exploit, Third Party Advisory
    Added Reference Type CVE: https://www.bleepingcomputer.com/news/security/critrical-cpanel-flaw-mass-exploited-in-sorry-ransomware-attacks/ Types: Press/Media Coverage
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    May. 04, 2026

    Action Type Old Value New Value
    Added Reference https://labs.watchtowr.com/the-internet-is-falling-down-falling-down-falling-down-cpanel-whm-authentication-bypass-cve-2026-41940/
    Added Reference https://www.bleepingcomputer.com/news/security/critrical-cpanel-flaw-mass-exploited-in-sorry-ransomware-attacks/
  • Initial Analysis by [email protected]

    Apr. 30, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 11.40 up to (excluding) 86.0.41 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 88.0.0 up to (excluding) 110.0.97 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 112.0.0 up to (excluding) 118.0.63 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 120.0.0 up to (excluding) 126.0.54 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 128.0.0 up to (excluding) 130.0.19 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 132.0.0 up to (excluding) 132.0.29 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 134.0.0 up to (excluding) 134.0.20 *cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:* versions from (including) 136.0.0 up to (excluding) 136.0.5
    Added CPE Configuration OR *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 11.40 up to (excluding) 86.0.41 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 112.0.0 up to (excluding) 118.0.63 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 120.0.0 up to (excluding) 126.0.54 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 128.0.0 up to (excluding) 130.0.19 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 132.0.0 up to (excluding) 132.0.29 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 134.0.0 up to (excluding) 134.0.20 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 136.0.0 up to (excluding) 136.0.5 *cpe:2.3:a:cpanel:whm:*:*:*:*:*:*:*:* versions from (including) 88.0.0 up to (excluding) 110.0.97
    Added CPE Configuration OR *cpe:2.3:a:cpanel:wp_squared:*:*:*:*:*:wordpress:*:* versions up to (excluding) 136.1.7
    Added Reference Type VulnCheck: https://docs.cpanel.net/release-notes/release-notes Types: Release Notes
    Added Reference Type VulnCheck: https://docs.wpsquared.com/changelogs/versions/changelog/#13617 Types: Release Notes
    Added Reference Type CISA-ADP: https://github.com/watchtowrlabs/watchTowr-vs-cPanel-WHM-AuthBypass-to-RCE.py Types: Exploit, Third Party Advisory
    Added Reference Type VulnCheck: https://support.cpanel.net/hc/en-us/articles/40073787579671-cPanel-WHM-Security-Update-04-28-2026 Types: Vendor Advisory
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41940 Types: US Government Resource
    Added Reference Type VulnCheck: https://www.namecheap.com/status-updates/ongoing-critical-security-vulnerability-in-cpanel-april-28-2026 Types: Third Party Advisory
    Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/cpanel-and-whm-authentication-bypass-via-login-flow Types: Third Party Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Apr. 30, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41940
  • CVE Modified by [email protected]

    Apr. 30, 2026

    Action Type Old Value New Value
    Changed Description cPanel and WHM versions prior to 11.110.0.97, 11.118.0.63, 11.126.0.54, 11.132.0.29, 11.134.0.20, and 11.136.0.5 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel. 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.
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Apr. 29, 2026

    Action Type Old Value New Value
    Added Reference https://github.com/watchtowrlabs/watchTowr-vs-cPanel-WHM-AuthBypass-to-RCE.py
  • New CVE Received by [email protected]

    Apr. 29, 2026

    Action Type Old Value New Value
    Added Description cPanel and WHM versions prior to 11.110.0.97, 11.118.0.63, 11.126.0.54, 11.132.0.29, 11.134.0.20, and 11.136.0.5 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.
    Added CVSS V4.0 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
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-306
    Added Reference https://docs.cpanel.net/release-notes/release-notes
    Added Reference https://docs.wpsquared.com/changelogs/versions/changelog/#13617
    Added Reference https://support.cpanel.net/hc/en-us/articles/40073787579671-cPanel-WHM-Security-Update-04-28-2026
    Added Reference https://www.namecheap.com/status-updates/ongoing-critical-security-vulnerability-in-cpanel-april-28-2026
    Added Reference https://www.vulncheck.com/advisories/cpanel-and-whm-authentication-bypass-via-login-flow
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 9.3
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact