CVE-2021-44053 Reflected XSS
Remote attackers can inject malicious scripts into QNAP NAS devices via reflected XSS, potentially compromising user sessions or executing code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-44053?
CVE-2021-44053 is a medium-severity cross-site scripting vulnerability in Qnap Qts, published on 5 May 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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
Weakness: CWE-79
Which versions are affected by CVE-2021-44053?
It affects 3 products.
Products include Qnap Qts, Qnap Quts Hero, Qnap Qutscloud.
How do I fix CVE-2021-44053?
No fix has been published for CVE-2021-44053 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-44053 being exploited?
There is no known exploitation of CVE-2021-44053 in the wild and no public exploit code.
Other vulnerabilities in Qnap Qts
Sources
Also known as GHSA-4j97-5qqj-cqrr.