CVE-2025-69906
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductMonstra Cms
PublishedFeb 5, 2026
First seenFeb 5, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| monstra monstra_cms | 3.0.4 | — |
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