CVE-2021-36755 Cross-site scripting in n/a

Medium 6.1 Published Updated

An attacker can execute arbitrary scripts in the Nightscout Web Monitor by sending a crafted X-Forwarded-For header.

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-2021-36755?

CVE-2021-36755 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Jul 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

Nightscout Web Monitor (aka cgm-remote-monitor) 14.2.2 allows XSS via a crafted X-Forwarded-For header.

Weakness: CWE-79

Which versions are affected by CVE-2021-36755?

It affects 1 product.

Products include Cgm-Remote-Monitor Project Cgm-Remote-Monitor.

How do I fix CVE-2021-36755?

No fix has been published for CVE-2021-36755 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-2021-36755 being exploited?

There is no known exploitation of CVE-2021-36755 in the wild and no public exploit code.

Sources

Also known as GHSA-g8j8-mcgm-59r2.

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