CVE-2022-21799 Cross-site scripting in ELECOM LAN router
An attacker on the adjacent network can inject arbitrary scripts into the router interface, potentially compromising user sessions or device integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-21799?
CVE-2022-21799 is a medium-severity cross-site scripting vulnerability in ELECOM LAN router, published on 8 Feb 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Cross-site scripting vulnerability in ELECOM LAN router WRC-300FEBK-R firmware v1.13 and earlier allows an attacker on the adjacent network to inject an arbitrary script via unspecified vectors.
Weakness: CWE-79
Which versions are affected by CVE-2022-21799?
It affects 1 product.
Products include Elecom Wrc-300febk-R Firmware.
How do I fix CVE-2022-21799?
No fix has been published for CVE-2022-21799 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-2022-21799 being exploited?
There is no known exploitation of CVE-2022-21799 in the wild and no public exploit code.
Sources
Also known as GHSA-gcv6-j277-xj7m.