CVE-2021-46109 Cross-site scripting in n/a

Medium 6.1 Published Updated

Reflected XSS in ASUS RT-AC52U_B1 routers allows attackers to hijack user sessions via invalid input sanitization.

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-2021-46109?

CVE-2021-46109 is a medium-severity cross-site scripting vulnerability in n/a, published on 3 Jan 2022. 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

Invalid input sanitizing leads to reflected Cross Site Scripting (XSS) in ASUS RT-AC52U_B1 3.0.0.4.380.10931 can lead to a user session hijack.

Weakness: CWE-79

Which versions are affected by CVE-2021-46109?

It affects 1 product.

Products include Asus Rt-Ac52u B1 Firmware.

How do I fix CVE-2021-46109?

No fix has been published for CVE-2021-46109 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-2021-46109 being exploited?

There is no known exploitation of CVE-2021-46109 in the wild and no public exploit code.

Sources

Also known as GHSA-87g9-qw66-4r63.

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