CVE-2021-44053 vulnerability in QNAP Products
Published on May 5, 2022
Reflected XSS
A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running 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: QTS 4.5.4.1991 build 20220329 and later QTS 5.0.0.1986 build 20220324 and later QuTS hero h5.0.0.1986 build 20220324 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTScloud c5.0.1.1949 and later
Vulnerability Analysis
CVE-2021-44053 can be exploited with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and 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-2021-44053 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2021-44053
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Affected Versions
QNAP Systems Inc. QTS:- Version unspecified and below 4.5.4.1991 build 20220329 is affected.
- Version unspecified and below 5.0.0.1986 build 20220324 is affected.
- Version unspecified and below h5.0.0.1986 build 20220324 is affected.
- Version unspecified and below h4.5.4.1971 build 20220310 is affected.
- Version unspecified and below c5.0.1.1949 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.