CVE-2021-27442 Weintek EasyWeb cMT Cross-site Scripting
An unauthenticated remote attacker can inject malicious JavaScript into Weintek cMT HMI devices, potentially compromising user sessions or device integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-27442?
CVE-2021-27442 is a critical cross-site scripting vulnerability in Weintek cMT-CTRL01, published on 16 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Weintek cMT product line is vulnerable to a cross-site scripting vulnerability, which could allow an unauthenticated remote attacker to inject malicious JavaScript code.
Weakness: CWE-79
Which versions are affected by CVE-2021-27442?
It affects 16 products.
Products include Weintek Cmt-Ctrl01 Firmware, Weintek Cmt-Fhd Firmware, Weintek Cmt-G01 Firmware, Weintek Cmt-G02 Firmware, Weintek Cmt-G03 Firmware, Weintek Cmt-G04 Firmware and 10 more.
How do I fix CVE-2021-27442?
No fix has been published for CVE-2021-27442 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-2021-27442 being exploited?
There is no known exploitation of CVE-2021-27442 in the wild and no public exploit code.
Other vulnerabilities in Weintek cMT-CTRL01
Sources
Also known as GHSA-39vj-8gx7-5cj5.