CVE-2020-37023
Koken CMS 0.22.24 - Arbitrary File Upload
- State
- Published
- Severity
- 8.7 High
- Published
- Jan 30, 2026
- Updated
- Feb 3, 2026
- Reserved
- Jan 28, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-434 Unrestricted Upload of File with Dangerous Type
Affected Products
| Product | Versions |
|---|---|
Koken CMSKoken |
|
References
- ExploitDB-48706exploit
- Koken CMS Official Homepageproduct
- Softaculous Koken CMS Software Pageproduct
- Researcher PoCtechnical-descriptionexploit
- VulnCheck Advisory: Koken CMS 0.22.24 - Arbitrary File Uploadthird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.