CVE-2025-69906

Monstra CMS v3.0.4 contains an arbitrary file upload vulnerability in the Files Manager plugin. The application relies on blacklist-based file extension validation and stores uploaded files directly in a web-accessible directory. Under typical server configurations, this can allow an attacker to upload files that are interpreted as executable code, resulting in remote code execution.

Affected products

File Manager, Monstra Cms

Monstra Monstra Cms

= 3.0.4

CVSS 3.1

8.8 HIGH

EPSS

0.7% (51th percentile)

Weakness

CWE-434

NVD status

Analyzed

Published

2026-02-05