CVE-2026-47790

Privilege Escalation via QuFTP Log-based XSS

State: Published
Severity: 6.3 Medium
Published: Oct 15, 2026
Updated: Oct 19, 2026
Reserved: May 20, 2026

Description

A cross-site scripting (XSS) vulnerability has been reported to affect QuFTP Service. If a remote attacker gains a user account, they can then exploit the vulnerability to inject malicious code.

We have already fixed the vulnerability in the following version: QuFTP Service 1.4.6 and later QuFTP Service 1.5.5 and later QuFTP Service 1.6.5 and later

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H	qnap

Weaknesses

CWE-79

Affected Products

Product	Versions
QuFTP ServiceQNAP Systems Inc.	1.4.x to before 1.4.6Affected 1.5.x to before 1.5.5Affected 1.6.x to before 1.6.5Affected

References

https://www.qnap.com/en/app-release-notes?keyword=QuFTP%20Service&app=QuFTP&product-line=nasrelease-notes

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