Home / Vulnerabilities / CVE-2026-41940
CRITICAL SEVERITY Ransomware Linked
CVE-2026-41940WebPros · cPanel & WHM and WP2 (WordPress Squared)

WebPros cPanel & WHM and WP2 (WordPress Squared) Missing Authentication for Critical Function Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

CRITICAL
9.8 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Likelihood

EPSS Prediction

64.28 %
Predictive Probability
Percentile Rank
98.5 th

Documented as more likely to be exploited than 98.5% of known CVEs.

Detection Date

Apr 30, 2026

Remediation Due

May 03, 2026

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

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

External Intelligence

https://support.cpanel.net/hc/en-us/articles/40073787579671-cPanel-WHM-Security-Update-04-28-2026

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.cpanel.net/release-notes/release-notes/

https://docs.wpsquared.com/changelogs/versions/changelog/#13617

https://docs.wpsquared.com/changelogs/versions/changelog/#13617

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2026-41940"