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CVE-2026-41940

Rapid7 Blog Advisory โ€” Apr 29, 2026

OverviewOn April 28, 2026, cPanel issued a security update to fix a critical vulnerability affecting the cPanel & WHM and WP Squared products. In the cPanel release notes, the bug was described as "an issue with session loading and saving." CVE-2026-41940, the identifier subsequently assigned on April 29, 2026, has a CVSS score of 9.8 and allows unauthenticated remote attackers to bypass authentication and gain unauthorized administrative access to the affected systems. First-party cPanel & WHM

Wednesday, April 29, 2026SAPVulnios Threat Intelligence
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Executive Summary

OverviewOn April 28, 2026, cPanel issued a security update to fix a critical vulnerability affecting the cPanel & WHM and WP Squared products. In the cPanel release notes, the bug was described as "an issue with session loading and saving." CVE-2026-41940, the identifier subsequently assigned on April 29, 2026, has a CVSS score of 9.8 and allows unauthenticated remote attackers to bypass authentication and gain unauthorized administrative access to the affected systems. First-party cPanel & WHM

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