CVE-2025-4561: Kinfor KFOX - Arbitrary File Upload

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-12 · updated 2026-06-17
Weakness: CWE-434

Description

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: through 2.6

References

https://www.twcert.org.tw/en/cp-139-10121-ddbfa-2.html
https://www.twcert.org.tw/tw/cp-132-10120-269d9-1.html

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