CVE-2021-20644 Cross-site scripting in WRC-1467GHBK-A

Medium 6.1 Published Updated

Attackers can execute arbitrary scripts in users' browsers via a crafted SSID on the router's web setup page.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-20644?

CVE-2021-20644 is a medium-severity cross-site scripting vulnerability in ELECOM CO.,LTD. WRC-1467GHBK-A, published on 12 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

ELECOM WRC-1467GHBK-A allows arbitrary scripts to be executed on the user's web browser by displaying a specially crafted SSID on the web setup page.

Weakness: CWE-74

Which versions are affected by CVE-2021-20644?

It affects 1 product.

Products include Elecom Wrc-1467ghbk-a Firmware.

How do I fix CVE-2021-20644?

No fix has been published for CVE-2021-20644 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-2021-20644 being exploited?

There is no known exploitation of CVE-2021-20644 in the wild and no public exploit code.

Sources

Also known as GHSA-chg9-84gg-7qpw.

Is CVE-2021-20644 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free