CVE-2020-20670 json
An arbitrary file upload vulnerability in /admin/media/upload of ZKEACMS V3.2.0 allows attackers to execute arbitrary code via a crafted HT…
published 2021-09-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-13455
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
An arbitrary file upload vulnerability in /admin/media/upload of ZKEACMS V3.2.0 allows attackers to execute arbitrary code via a crafted HTML file.
Exploit prediction
1.75% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/yilezhu/Czar.Cms/issues/6 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
github.com
/yilezhu/Czar.Cms/issues/6
exploit, third-party-advisory
Sources
- CVE List CVE-2020-20670
- NVD CVE-2020-20670
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