CVE-2023-53956
HIGHFlatnux 2021-03.25 - RCE
Title source: llmDescription
Flatnux 2021-03.25 contains an authenticated file upload vulnerability that allows administrative users to upload arbitrary PHP files through the file manager. Attackers with admin credentials can upload malicious PHP scripts to the web root directory, enabling remote code execution on the server.
Exploits (1)
exploitdb
WORKING POC
by Ömer Hasan Durmuş · textwebappsphp
https://www.exploit-db.com/exploits/51295
Scores
CVSS v3
8.8
EPSS
0.0035
EPSS Percentile
57.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-434
Status
published
Products (1)
altervista/flatnux
2021-03.25
Published
Dec 19, 2025
Tracked Since
Feb 18, 2026