【Vulnerability Alert】Critical Security Vulnerability in cPanel and WHM (WebHost Manager) (CVE-2026-58048)

• Subject: 【Vulnerability Alert】Critical Security Vulnerability in cPanel and WHM (WebHost Manager) (CVE-2026-58048)

• Description:
  • Forwarded Security Alert from TWCERT/CC (Taiwan Computer Emergency Response Team/Coordination Center) TWCERTCC-200-202608-00000007
  • Recently, cPanel released a critical security advisory (CVE-2026-58048, CVSS 4.x: 9.4). This vulnerability exists in the cPanel and WHM (WebHost Manager) management systems and is classified as a privilege escalation vulnerability. An authenticated cPanel account with access permissions to MySQL/MariaDB databases could exploit this vulnerability to execute arbitrary database commands with full administrative privileges.
• Affected Platforms:
  • All versions of cPanel and WHM (WebHost Manager)
• Recommendations:
  • Please update to the following versions or later: cPanel/WHM version 11.110.0.137, cPanel/WHM version 11.118.0.71, cPanel/WHM version 11.126.0.78, cPanel/WHM version 11.134.0.48, cPanel/WHM version 11.136.0.32, cPanel/WHM version 138.1.6 (WP2)
• Reference Information:
  1. https://support.cpanel.net/hc/en-us/articles/42285745783703-Security-CVE-2026-58048-Database-Privilege-Escalation
  2. https://nvd.nist.gov/vuln/detail/CVE-2026-58048

Computer and Communication Center
Network Systems Division