WebPros cPanel and WHM Authentication Bypass via Login Flow
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.
Severity critical: primary CNA CVSS 9.3 v4.0 (worst CNA-provided scenario) KEV listed. Forecast present in this snapshot.
Published 2026-04-29T15:10:37.899Z. Updated 2026-09-30T17:20:17.713Z.