CVE-2021-47903: LiteSpeed Technologies Inc LiteSpeed Web Server Enterprise

High severity, CVSS 8.8. EPSS: 1.6% chance of exploitation in the next 30 days.

LiteSpeed Web Server Enterprise 5.4.11 contains an authenticated command injection vulnerability in the external app configuration interface. Authenticated administrators can inject shell commands through the 'Command' parameter in the server configuration, allowing remote code execution via path traversal and bash command injection.

Affected products

• LiteSpeed Technologies Inc LiteSpeed Web Server Enterprise: version 5.4.11 only

Published 2026-01-23. Last modified 2026-06-17.