CVE-2020-21322 json
Arbitrary Code Execution in feehi/cms
published 2021-09-15 5 y ago modified 2026-06-17 4 mo ago also GHSA-rf3w-29h3-r636 , EUVD-2021-2107
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
An arbitrary file upload vulnerability in Feehi CMS v2.0.8 and below allows attackers to execute arbitrary code via a crafted PHP file.
Patch / fix
Exploit prediction
1.78% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/liufee/cms/issues/44 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 |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
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/commit/ecbfb0ca77874ead5b6e79b96a5e1f94e67475a9
web
-
github.com
/liufee/cms/issues/44
web, exploit, issue-tracking, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-21322
advisory
-
github.com
/liufee/cms
package
Sources
- CVE List CVE-2020-21322
- GitHub Advisory GHSA-rf3w-29h3-r636
- NVD CVE-2020-21322
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.