CVE-2020-21516 json
FeehiCMS has an arbitrary file upload vulnerability
published 2022-09-06 4 y ago modified 2026-06-17 4 mo ago also GHSA-jj62-mc3m-j769 , EUVD-2022-6855
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
There is an arbitrary file upload vulnerability in FeehiCMS 2.0.8 at the head image upload, that allows attackers to execute relevant PHP code.
Patch / fix
- packagist feehi/cms 2.0.8.1
- github.com/liufee/cms@ecbfb0c commit
- github.com/liufee/cms/releases/tag/2.0.8.1 release
- github.com/liufee/cms/issues/46 advisory
Exploit prediction
1.27% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/liufee/cms/issues/46 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | feehi/cms | <2.0.8.1 |
2.0.8.1 |
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
github.com
/liufee/cms/issues/46
web, exploit, patch, third-party-advisory
-
github.com
/liufee/cms/commit/ecbfb0ca77874ead5b6e79b96a5e1f94e67475a9
web
-
nvd.nist.gov
/vuln/detail/CVE-2020-21516
advisory
-
github.com
/liufee/cms
package
-
github.com
/liufee/cms/releases/tag/2.0.8.1
web
Sources
- CVE List CVE-2020-21516
- GitHub Advisory GHSA-jj62-mc3m-j769
- NVD CVE-2020-21516
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