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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (6.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- QNAP Quftp
- QNAP Systems Inc. Quftp Service — versions 1.4.0, 1.5.x, 1.6.x
Weakness classification (CWE)
References
- www.qnap.com/en/security-advisory/qsa-26-15 (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.