CVE-2021-47903highCWE-78

CVE-2021-47903: high-severity vulnerability in LiteSpeed Web Server Enterprise

LiteSpeed Web Server Enterprise 5.4.11 - Command Injection

Published 23 Jan 2026 · Updated 15 Jul 2026

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.6epss 1.6%

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

LiteSpeed Technologies Inc · LiteSpeed Web Server Enterprise

References

https://www.exploit-db.com/exploits/49523 https://www.litespeedtech.com/https://www.litespeedtech.com/products https://www.vulncheck.com/advisories/litespeed-web-server-enterprise-command-injection