XSS in Qnap Quftp
CVE-2026-22895
A cross-site scripting (XSS) vulnerability has been reported to affect QuFTP Service. If a remote attacker gains an administrator account, they can then exploit the vulnerability to bypass security mechanisms or read application data. We have already fixed the vulnerability in the following versions: QuFTP Service 1.4.3 and later QuFTP Service 1.5.2 and later QuFTP Service 1.6.2 and later
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (7.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Qnap Quftp
- Qnap Systems Inc. Quftp Service — versions 1.4.0, 1.5.x, 1.6.x
Weakness classification (CWE)
References
- security@qnapsecurity.com.tw (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-22895?
- CVE-2026-22895 is a medium-severity vulnerability in Qnap Quftp, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-03-20.
- How severe is CVE-2026-22895?
- Medium severity. CVSS v3 base score is 4.8 out of 10.