What is CVE-2022-4861?

CVE-2022-4861 is a medium-severity vulnerability in M-Files Client, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 4.8/10. Published 2022-12-30.

How severe is CVE-2022-4861?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Auth bypass in M-Files Client

CVE-2022-4861

Incorrect implementation in authentication protocol in M-Files Client before 22.5.11356.0 allows high privileged user to get other users tokens to another resource.

Published 2022-12-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (43.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

M-Files Client — versions 0
M-Files Client

Weakness classification (CWE)

References

www.m-files.com/about/trust-center/security-advisories/cve-2022-4861/ (Broken Link)
product.m-files.com/security-advisories/cve-2022-4861/ (vendor-advisory)
empower.m-files.com/security-advisories/CVE-2022-4861 (vendor-advisory)

Frequently asked questions

What is CVE-2022-4861?: CVE-2022-4861 is a medium-severity vulnerability in M-Files Client, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 4.8/10. Published 2022-12-30.
How severe is CVE-2022-4861?: Medium severity. CVSS v3 base score is 4.8 out of 10.