CVE-2021-3317

high

Description

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

References

https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection

http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html

Details

Source: Mitre, NVD

Published: 2021-01-26

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

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

Severity: High

EPSS

EPSS: 0.41394