What is CVE-2022-25411?

CVE-2022-25411 is a critical-severity vulnerability in Max-3000 Maxsite Cms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2022-02-28.

How severe is CVE-2022-25411?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-25411 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Max-3000 Maxsite Cms

CVE-2022-25411

A Remote Code Execution (RCE) vulnerability at /admin/options in Maxsite CMS v180 allows attackers to execute arbitrary code via a crafted PHP file.

Vulnerability class: Unrestricted File Upload

Published 2022-02-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.030 (86.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000

Affected products

Max-3000 Maxsite Cms — versions 108

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

github.com/maxsite/cms/issues/487 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-25411?: CVE-2022-25411 is a critical-severity vulnerability in Max-3000 Maxsite Cms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2022-02-28.
How severe is CVE-2022-25411?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-25411 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.