CVE-2021-47903

LiteSpeed Web Server Enterprise 5.4.11 - Command Injection

HIGH
8.8
CVSS Score
Published: January 23, 2026 at 04:47 PM UTC
Updated: June 17, 2026 at 04:18 AM UTC
2 products affected across 2 vendorsLitespeed Web ServerLiteSpeed Web Server

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Severity
HIGH8.8
Exploit prediction
EPSS 2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-78

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