What is CVE-2025-4561?

CVE-2025-4561 is a high-severity vulnerability in Kinfor Kfox, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2025-05-12.

How severe is CVE-2025-4561?

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

Arbitrary file upload in Kinfor Kfox

CVE-2025-4561

The KFOX from KingFor has an Arbitrary File Upload vulnerability, allowing remote attackers with regular privilege to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

Vulnerability class: Unrestricted File Upload

EPSS: 0.006 (42.9th percentile) — read the EPSS interpretation.

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.

Affected products

Kinfor Kfox — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

twcert@cert.org.tw (third-party-advisory)
twcert@cert.org.tw (third-party-advisory)

Frequently asked questions

What is CVE-2025-4561?: CVE-2025-4561 is a high-severity vulnerability in Kinfor Kfox, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2025-05-12.
How severe is CVE-2025-4561?: High severity. CVSS v3 base score is 8.8 out of 10.