CVE-2021-38674 vulnerability in QNAP Products
Published on January 7, 2022
Reflected XSS Vulnerability in TFTP
A cross-site scripting (XSS) vulnerability has been reported to affect QTS, QuTS hero and QuTScloud. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of QTS, QuTS hero and QuTScloud: QuTS hero h4.5.4.1771 build 20210825 and later QTS 4.5.4.1787 build 20210910 and later QuTScloud c4.5.7.1864 and later
Vulnerability Analysis
CVE-2021-38674 is exploitable with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2021-38674 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2021-38674
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Affected Versions
QNAP Systems Inc. QuTS hero:- Version unspecified and below h4.5.4.1771 build 20210825 is affected.
- Version unspecified and below 4.5.4.1787 build 20210910 is affected.
- Version unspecified and below c4.5.7.1864 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.