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.
WebPros ยท cPanel & WHM and WP2 (WordPress Squared)
Known ransomware use: Known
Follow the source advisory and validate exposure in your environment.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Recent reporting that mentions CVE-2026-41940.
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
A new disclosed cPanel flaw tracked as CVE-2026-41940 is being mass-exploited to breach websites and encrypt data in "Sorry" ransomware attacks. [...]
The critical CVE-2026-41940 authentication bypass vulnerability in cPanel, WHM, and WP Squared is being actively exploited in the wild and has been leveraged in attempts since late February. [...]