Description
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 (2)
Core 2
Core References
Product x_refsource_misc
https://github.com/ttimot24/HorizontCMS
Patch, Third Party Advisory x_refsource_misc
https://github.com/ttimot24/HorizontCMS/commit/9c4d6827cbe96decec6834d53660e14ab2bf8838
Scores
CVSS v3
9.8
EPSS
0.0043
EPSS Percentile
62.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-434
Status
published
Products (1)
horizontcms_project/horizontcms
1.0.0 (11 CPE variants)
Published
Apr 05, 2022
Tracked Since
Feb 18, 2026