XSS in QNAP Qts
CVE-2018-19942
A cross-site scripting (XSS) vulnerability has been reported to affect earlier versions of File Station. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions: QTS 4.5.2.1566 build 20210202 (and later) QTS 4.5.1.1456 build 20201015 (and later) QTS 4.3.6.1446 build 20200929 (and later) QTS 4.3.4.1463 build 20201006 (and later) QTS 4.3.3.1432 build 20201006 (and later) QTS 4.2.6 build 20210327 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.4.1601 build 20210309 (and later) QuTScloud c4.5.3.1454 build 20201013 (and later)
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (53.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- QNAP Qts — versions 4.2.6, 4.3.3, 4.3.3.0095
- QNAP Qutscloud — versions c4.5.3, c4.5.4
- QNAP Quts Hero — versions h4.5.1
- QNAP Systems Inc. Qts — versions unspecified
- QNAP Systems Inc. Qutscloud — versions unspecified
- QNAP Systems Inc. Quts Hero — versions unspecified
Weakness classification (CWE)
References
- www.qnap.com/zh-tw/security-advisory/qsa-21-04 (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-19942?
- CVE-2018-19942 is a medium-severity vulnerability in QNAP Qts, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-04-16.
- How severe is CVE-2018-19942?
- Medium severity. CVSS v3 base score is 6.1 out of 10.