Critical vulnerability in cPanel leads to widespread exploitation
- On Thursday, CISA added the critical CVE-2026-41940 flaw to its Known Exploited Vulnerabilities catalog, as more than 550,000 servers running cPanel and WHM remain potentially vulnerable as of Monday.
- Webpros develops cPanel and WebHost Manager, software that powers 60 million domains, and the authentication bypass flaw allows remote attackers to gain full control of vulnerable systems.
- The Shadowserver Foundation reported more than 572,000 exposed instances globally as of Sunday, with more than 391,000 servers located in North America.
- Exploitation activity continues with around 2,000 cPanel instances currently compromised, down from around 44,000 on Thursday, while researchers at Defused identified more than 1,000 exploitation attempts since disclosure.
- KnownHost CEO Daniel Pearson reported attacks detected as far back as February 23, and the company has begun blocking cPanel and WHM login ports across its network as a precautionary measure.
17 Articles
17 Articles
TechCrunch
IT Security News - cybersecurity, infosecurity newsHackers are still exploiting the cPanel bug to gain control of thousands of websites
Days after the disclosure of a critical vulnerability in popular web hosting software cPanel and WHM, hackers keep targeting and hacking websites.
If you have a web site hosted by a traditional provider, there is a good chance that cPanel will run somewhere in the background. It's the dashboard that millions of site owners use to manage their files, emails, databases, domain names. The tool and its companion [...]
A recently discovered zero-day security vulnerability in the widespread server management software cPanel is currently causing serious problems. Over 40,000 servers are said to have been hacked over it. (Continue reading)
Just a week ago, the developers of the popular software cPanel and WebHost Manager (WHM) issued an urgent warning about a critical hole in the system, and today the effects of a real digital tsunami are already being observed.
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