CVE-2021-45670 Cross-site scripting in n/a

Medium 6.5 Published Updated

Stored XSS in NETGEAR router firmware allows attackers to inject scripts, potentially leading to session hijacking or malicious actions.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-45670?

CVE-2021-45670 is a medium-severity cross-site scripting vulnerability in Netgear R6900p Firmware, published on 26 Dec 2021. 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

Certain NETGEAR devices are affected by stored XSS. This affects CBR40 before 2.5.0.10, EAX20 before 1.0.0.48, EAX80 before 1.0.1.64, EX6120 before 1.0.0.64, EX6130 before 1.0.0.44, EX7500 before 1.0.0.72, R7000 before 1.0.11.116, R7900 before 1.0.4.38, R8000 before 1.0.4.68, RAX200 before 1.0.3.106, RBS40V before 2.6.1.4, RBW30 before 2.6.1.4, EX3700 before 1.0.0.90, MR60 before 1.0.6.110, R7000P before 1.3.2.126, RAX20 before 1.0.2.82, RAX45 before 1.0.2.72, RAX80 before 1.0.3.106, EX3800 before 1.0.0.90, MS60 before 1.0.6.110, R6900P before 1.3.2.126, RAX15 before 1.0.2.82, RAX50 before 1.0.2.72, RAX75 before 1.0.3.106, RBR750 before 3.2.16.6, RBR850 before 3.2.16.6, RBS750 before 3.2.16.6, RBS850 before 3.2.16.6, RBK752 before 3.2.16.6, and RBK852 before 3.2.16.6.

Weakness: CWE-79

Which versions are affected by CVE-2021-45670?

It affects 30 products.

Products include Netgear Cbr40 Firmware, Netgear Eax20 Firmware, Netgear Eax80 Firmware, Netgear Ex3700 Firmware, Netgear Ex3800 Firmware, Netgear Ex6120 Firmware and 24 more.

How do I fix CVE-2021-45670?

No fix has been published for CVE-2021-45670 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-2021-45670 being exploited?

There is no known exploitation of CVE-2021-45670 in the wild and no public exploit code.

All Netgear R6900p Firmware vulnerabilities

Sources

Also known as GHSA-4fj9-jwhq-wg29.

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