CVE-2021-3317

HIGH

Klogserver Klog Server < 2.4.1 - OS Command Injection

Title source: rule

Description

KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.

Exploits (2)

exploitdb WORKING POC
by Metin Yunus Kandemir · pythonwebappsphp
https://www.exploit-db.com/exploits/49511
nomisec WORKING POC 2 stars
by Al1ex · poc
https://github.com/Al1ex/CVE-2021-3317

References (2)

Scores

CVSS v3 8.8
EPSS 0.2636
EPSS Percentile 96.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-78
Status published
Products (1)
klogserver/klog_server < 2.4.1
Published Jan 26, 2021
Tracked Since Feb 18, 2026