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Critical cPanel Vulnerability Weaponized to Target Government and MSP Networks

BACKGROUND
1 SIGNALFIRST DETECTED 4 May 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
Other feeds and industry voices
30 Apr
Critical cPanel and WHM bug exploited as a zero-day, PoC now available

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

REPORT · WHAT · BleepingComputerOPEN STORY
11 May
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

REPORT · WHAT · The Hacker NewsOPEN STORY
29 Apr
Critical cPanel Authentication Vulnerability Identified — Update Your Server Immediately

cPanel has released security updates to address a security issue impacting various authentication paths that could allow an attacker to obtain access to the control panel

REPORT · WHAT · The Hacker NewsOPEN STORY
9 May
cPanel, WHM Release Fixes for Three New Vulnerabilities — Patch Now

cPanel has released updates to address three vulnerabilities in cPanel and Web Host Manager (WHM) that could be exploited to achieve privilege escalation, code execution, and

REPORT · HOW · The Hacker NewsOPEN STORY
2 May
Critrical cPanel flaw mass-exploited in "Sorry" ransomware attacks

A new disclosed cPanel flaw tracked as CVE-2026-41940 is being mass-exploited to breach websites and encrypt data in "Sorry" ransomware attacks. [...]

REPORT · WHAT · BleepingComputerOPEN STORY
4 May
Days after the disclosure of a critical vulnerability in popular web hosting software cPanel and WHM, hackers keep targeting and hacking websites.

Days after the disclosure of a critical vulnerability in popular web hosting software cPanel and WHM, hackers keep targeting and hacking websites.

OPINION · WHAT · TechCrunchOPEN STORY
23 Jul
Attackers Weaponize GitHub Actions Runners to Target cPanel and WHM Servers

Cybersecurity researchers have shed light on a large-scale campaign that has turned compromised GitHub repositories into distributed attack infrastructure designed to target

REPORT · WHAT · The Hacker NewsOPEN STORY
1 May
Actively exploited cPanel bug exposes millions of websites to takeover

A vulnerability in the cPanel/WHM admin interface lets attackers access websites without a username and password.

REPORT · WHAT · Malwarebytes LabsOPEN STORY
Sources
The Hacker News

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