CVE-2025-4561: Kinfor Kfox

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• Kinfor Kfox: up to and including 2.6

Published 2025-05-12. Last modified 2026-06-17.