CVE-2021-47903
CVSS v3
8.8
HIGH
EPSS Score
1.6 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2026-01-23
- Last Modified
- 2026-04-14
Frequently asked questions
What is CVE-2021-47903?
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.
Is CVE-2021-47903 actively exploited?
Active exploitation of CVE-2021-47903 has not been confirmed. Its EPSS score was 1.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-47903?
CVE-2021-47903 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-47903 affecting your environment?
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