CVE-2021-36387 Cross-site scripting in n/a

Medium 5.4 Published Updated

Stored Cross-Site Scripting in Yellowfin allows attackers to execute arbitrary scripts via crafted HTTP POST requests, potentially leading to session hijacking or data theft.

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-2021-36387?

CVE-2021-36387 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 Oct 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

In Yellowfin before 9.6.1 there is a Stored Cross-Site Scripting vulnerability in the video embed functionality exploitable through a specially crafted HTTP POST request to the page "ActivityStreamAjax.i4".

Weakness: CWE-79, CWE-639

Which versions are affected by CVE-2021-36387?

It affects 1 product.

Products include Yellowfinbi Yellowfin.

How do I fix CVE-2021-36387?

No fix has been published for CVE-2021-36387 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-2021-36387 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-36387 exists.

Sources

Also known as GHSA-7hr6-j3qm-7p23.

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