CVE-2021-37743 Cross-site scripting in n/a

Medium 5.4 Published Updated

Attackers can inject malicious scripts into MISP galaxy cluster views, potentially stealing user sessions or executing code in victim browsers.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-37743?

CVE-2021-37743 is a medium-severity cross-site scripting vulnerability in Misp-Project Misp, published on 30 Jul 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

app/View/GalaxyElements/ajax/index.ctp in MISP 2.4.147 allows Stored XSS when viewing galaxy cluster elements in JSON format.

Weakness: CWE-79

Which versions are affected by CVE-2021-37743?

It affects 1 product.

Products include Misp-Project Misp.

How do I fix CVE-2021-37743?

No fix has been published for CVE-2021-37743 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-2021-37743 being exploited?

There is no known exploitation of CVE-2021-37743 in the wild and no public exploit code.

All Misp-Project Misp vulnerabilities

Sources

Also known as GHSA-326m-f543-4x67.

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