Risk Letters

Exploited vulnerability

CVE-2026-41940

TLP:CLEAR

WebPros cPanel & WHM and WP2 (WordPress Squared) Missing Authentication for Critical Function Vulnerability

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.

Facts

  • Vendor: WebPros
  • Product: cPanel & WHM and WP2 (WordPress Squared)
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 98.5 %
  • On CISA's Known Exploited Vulnerabilities list since: 30 April 2026
  • First known exploitation: 30 April 2026
  • Used in ransomware campaigns (per CISA): Yes
  • CISA's deadline for US federal agencies: 3 May 2026
  • Weakness: CWE-306
  • First seen by Risk Letters: 29 April 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD