CVE-2020-27387
HIGH 8.8EPSS 18.5%
An unrestricted file upload issue in HorizontCMS through 1.0.0-beta allows an authenticated remote attacker (with access to the FileManager) to upload and execute arbitrary PHP code by uploading a PHP payload, and then using the FileManager's rename function to provide the payload (which will receive a random name on the server) with the PHP extension, and finally executing the PHP file via an HTTP GET request to /storage/<php_file_name>. NOTE: the vendor has patched this while leaving the version number at 1.0.0-beta.
- CVSS v3.1
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0
- 6.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P - EPSS
- 18.46% chance of exploitation in the next 30 days, 97th percentile
- Published
- 2020-11-05
- Updated
- 2024-08-04
Proof-of-concept exploits (2)
- http://packetstormsecurity.com/files/160046/HorizontCMS-1.0.0-beta-Shell-Upload.html
- https://blog.vonahi.io/whats-in-a-re-name/