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Tool Directory

CVE-2021-26814

HighPublished

Wazuh API in Wazuh from 4.0.0 to 4.0.3 allows authenticated users to execute arbitrary code with administrative privileges via /manager/files URI. An...

Published: Mar 6, 2021
Updated: Aug 3, 2024
Assigning CNA: mitre
Evidence observed: Aug 8, 2026

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

8.7%

Low · next 30 days

Percentile: 95.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Wazuh API in Wazuh from 4.0.0 to 4.0.3 allows authenticated users to execute arbitrary code with administrative privileges via /manager/files URI. An authenticated user to the service may exploit incomplete input validation on the /manager/files API to inject arbitrary code within the API service script.

Sources

CVE-2021-26814PoC
PoC of CVE-2021-26814
CVE-2021-26814PoC
A simple python PoC to exploit CVE-2021-26814 and gain RCE on Wazuh Manager (v.4.0.0-4.0.3) through the API service.
Internet-Security-Project---CVE-2021-26814PoC
Educational exploit demonstration for CVE-2021-26814 targeting Wazuh v4.0.3, with step-by-step exploitation and remediation code for university-level cybersecurity training.

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