CVE-2020-28903 Cross-site scripting in n/a

Medium 6.1 Published Updated

Remote attackers can inject arbitrary HTML into Nagios Fusion, potentially leading to session hijacking or malicious script execution.

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-2020-28903?

CVE-2020-28903 is a medium-severity cross-site scripting vulnerability in n/a, published on 24 May 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

Improper input validation in Nagios Fusion 4.1.8 and earlier allows a remote attacker with control over a fused server to inject arbitrary HTML, aka XSS.

Weakness: CWE-79

Which versions are affected by CVE-2020-28903?

It affects 1 product.

Products include Nagios Fusion.

How do I fix CVE-2020-28903?

No fix has been published for CVE-2020-28903 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-2020-28903 being exploited?

There is no known exploitation of CVE-2020-28903 in the wild and no public exploit code.

Sources

Also known as GHSA-c3f6-5x5g-vp36.

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