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CVE-2020-37023

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CVE-2020-37023

Published: Jan 30, 2026

Modified: Feb 3, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

Description

Koken CMS 0.22.24 contains a file upload vulnerability that allows authenticated attackers to bypass file extension restrictions by renaming malicious PHP files. Attackers can upload PHP files with system command execution capabilities by manipulating the file upload request through a web proxy and changing the file extension.

VendorProductVersions

Koken

Koken CMS

affected
0.22.24

Weaknesses (CWE)

CWE-434

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

Researcher PoC
technical-description
exploit

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