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CVE-2025-69906

HIGH
8.8
CVSS Score
Published: February 5, 2026 at 12:00 AM UTC
Updated: June 17, 2026 at 10:00 AM UTC
2 products affected across 1 vendorMonstraMonstra CMS

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Severity
HIGH8.8
Exploit prediction
EPSS 0.8%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Exploit
Source: cverecord
https://github.com/monstra-cms/monstra/tree/master/plugins/box/filesmanager
ExploitThird Party Advisory
Source: cverecord
https://github.com/cypherdavy/CVE-2025-69906-Monstra-CMS-3.0.4-Arbitrary-File-Upload-to-RCE

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-434

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