CVE-2026-41940 — WebPros cPanel & WHM and WP2 (WordPress Squared) Missing Authentication for Critical Function Vulnerability

Overview

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.

Vulnerability details

CVE ID

CVE-2026-41940

Vulnerability

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

Vendor

WebPros

Affected products

WebPros: cPanel & WHM and WP2 (WordPress Squared)

Severity

HIGH

Exploitation status

Actively exploited in the wild (CISA KEV)

EPSS score

90.5% probability of exploitation in 30 days · 100th percentile

Published

2026-04-30

Remediation guidance

CVE-2026-41940 is in CISA's Known Exploited Vulnerabilities (KEV) catalog — U.S. federal civilian agencies are required to remediate it under Binding Operational Directive 22-01. Treat it as a priority for every environment.

Apply the vendor's official security update for WebPros the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.

FIRST EPSS estimates a 90.5% probability that CVE-2026-41940 will be exploited within the next 30 days (100th percentile of all CVEs) — useful for risk-based patch sequencing.

Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.

Authoritative references

• NVD — National Vulnerability Database
• MITRE CVE Record
• CISA Known Exploited Vulnerabilities Catalog
• FIRST EPSS — Exploit Prediction Scoring