CVE-2025-14318: Improper access validation in M-Files Server

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-18 · updated 2026-06-17
Weakness: CWE-863

Description

Improper access checks in M-Files Server before 25.12.15491.7 allows users to download files through M-Files Web using Web Companion despite Print and Download Prevention module being enabled.

Affected products

M-Files Corporation M-Files Server: before 25.12.15491.7 — fixed in 25.12.15491.7

How to fix

Upgrade to a fixed version: M-Files Corporation M-Files Server 25.12.15491.7. Check the vendor advisory for mitigations.

References

https://empower.m-files.com/security-advisories/CVE-2025-14318
https://product.m-files.com/security-advisories/cve-2025-14318/

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