CVE-2018-21209 Cross-site scripting in n/a

Medium 4.8 Published Updated

Reflected XSS in NETGEAR routers allows attackers to execute scripts in user browsers, potentially leading to session hijacking or data theft.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-21209?

CVE-2018-21209 is a medium-severity cross-site scripting vulnerability in Netgear Jr6150 Firmware, published on 28 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Certain NETGEAR devices are affected by reflected XSS. This affects JNR1010v2 before 1.1.0.46, JR6150 before 1.0.1.10, JWNR2010v5 before 1.1.0.46, PR2000 before 1.0.0.20, R6050 before 1.0.1.10, R6220 before 1.1.0.60, WNDR3700v5 before 1.1.0.50, WNR1000v4 before 1.1.0.46, WNR2020 before 1.1.0.46, and WNR2050 before 1.1.0.46.

Weakness: CWE-79

Which versions are affected by CVE-2018-21209?

It affects 10 products.

Products include Netgear Jnr1010 Firmware, Netgear Jr6150 Firmware, Netgear Jwnr2010 Firmware, Netgear Pr2000 Firmware, Netgear R6050 Firmware, Netgear R6220 Firmware and 4 more.

How do I fix CVE-2018-21209?

No fix has been published for CVE-2018-21209 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-2018-21209 being exploited?

There is no known exploitation of CVE-2018-21209 in the wild and no public exploit code.

All Netgear Jr6150 Firmware vulnerabilities

Sources

Also known as GHSA-mwvg-rm6p-8rhr.

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