CVE-2021-28428

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-28428
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28428.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-28428
Published
2022-04-05T16:15:11Z
Modified
2025-07-01T23:57:33.888573Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

File upload vulnerability in HorizontCMS before 1.0.0-beta.3 via uploading a .htaccess and *.hello files using the Media Files upload functionality. The original file upload vulnerability (CVE-2020-27387) was remediated by restricting the PHP extensions; however, we confirmed that the filter was bypassed via uploading an arbitrary .htaccess and *.hello files in order to execute PHP code to gain RCE.

References

Affected packages

Git / github.com/ttimot24/horizontcms

Affected ranges

Type
GIT
Repo
https://github.com/ttimot24/horizontcms
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

v1.*

v1.0.0-alpha
v1.0.0-alpha.2
v1.0.0-alpha.3
v1.0.0-alpha.4
v1.0.0-alpha.5
v1.0.0-alpha.6
v1.0.0-alpha.7
v1.0.0-alpha.8
v1.0.0-beta
v1.0.0-beta.2