CVE-2020-37023
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Koken CMS
PublishedJan 30, 2026
First seenJan 30, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Koken Koken CMS | 0.22.24 | — |
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