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Case File

CVE-2023-53956

HIGH · CVSS 8.8 EPSS 0.68% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-12-19 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution
External Security References

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-53956
Severity
HIGH
CVSS
8.8
EPSS
0.68%

Original NVD Description

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.