What is CVE-2022-28440?

CVE-2022-28440 is a high-severity vulnerability in Ucms Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-04-21.

How severe is CVE-2022-28440?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2022-28440 known to be exploited?

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

Arbitrary file upload in Ucms Project

CVE-2022-28440

An arbitrary file upload vulnerability in UCMS v1.6 allows attackers to execute arbitrary code via a crafted PHP file.

Vulnerability class: Unrestricted File Upload

Published 2022-04-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.017 · change: +0.001

Affected products

Ucms Project — versions 1.6

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

github.com/k0xx11/bug_report/blob/main/UCMS-1.6/UCMS-RCE1.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-28440?: CVE-2022-28440 is a high-severity vulnerability in Ucms Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-04-21.
How severe is CVE-2022-28440?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2022-28440 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.