High severity8.8NVD Advisory· Published Jan 30, 2026· Updated Apr 15, 2026
CVE-2020-37023
CVE-2020-37023
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.
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