CVE-2018-19943 QNAP NAS File Station Cross-Site Scripting
Remote attackers can inject malicious scripts into QNAP NAS web interfaces, potentially leading to code execution or account takeover.
- Exploited in the wild
- Since 24 May 2022
- 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-2018-19943?
CVE-2018-19943 is a high-severity cross-site scripting vulnerability in Qnap Qts, published on 28 Oct 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed these issues in the following QTS versions. QTS 4.4.2.1270 build 20200410 and later QTS 4.4.1.1261 build 20200330 and later QTS 4.3.6.1263 build 20200330 and later QTS 4.3.4.1282 build 20200408 and later QTS 4.3.3.1252 build 20200409 and later QTS 4.2.6 build 20200421 and later
Which versions are affected by CVE-2018-19943?
It affects 1 product.
Products include Qnap Qts.
How do I fix CVE-2018-19943?
No fix has been published for CVE-2018-19943 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 14 Jun 2022.
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-2018-19943 being exploited?
Yes. Attackers have exploited CVE-2018-19943 in the wild since at least 24 May 2022, including in ransomware campaigns.
Other vulnerabilities in Qnap Qts
Sources
Also known as GHSA-wh89-fj9h-4gr8.