CVE-2023-40143 Westermo Lynx
An attacker can inject arbitrary JavaScript into the Westermo Lynx web application via the forward.0.domain parameter, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-40143?
CVE-2023-40143 is a medium-severity cross-site scripting vulnerability in Westermo Lynx, published on 6 Feb 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An attacker with access to the Westermo Lynx web application that has the vulnerable software could introduce arbitrary JavaScript by injecting a cross-site scripting payload into the "forward.0.domain" parameter.
Weakness: CWE-79
Which versions are affected by CVE-2023-40143?
It affects 1 product.
Products include Westermo L206-F2g Firmware.
How do I fix CVE-2023-40143?
No fix has been published for CVE-2023-40143 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-2023-40143 being exploited?
There is no known exploitation of CVE-2023-40143 in the wild and no public exploit code.
Other vulnerabilities in Westermo Lynx
- CVE-2023-38579 Westermo Lynx 206-F2G Cross-Site Request Forgery
- CVE-2023-45735 Westermo Lynx Code Injection
- CVE-2023-45213 Westermo Lynx Permissive Cross-domain Policy with Untrusted Domains
- CVE-2023-40544 Westermo Lynx Cleartext Transmission of Sensitive Information
- CVE-2023-42765 Westermo Lynx Cross-site Scripting
Sources
Also known as GHSA-7xgh-8hg2-6j33.