CVE-2022-35909 Incorrect Access Control and Cross Site Scripting in Jellyfin

High 8.8 Published Updated

Attackers can access admin functionality via the /users endpoint due to incorrect access control, potentially escalating privileges or modifying data.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2022-35909?

CVE-2022-35909 is a high-severity missing authorization vulnerability in n/a, published on 19 Aug 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Jellyfin before 10.8, the /users endpoint has incorrect access control for admin functionality.

Which versions are affected by CVE-2022-35909?

2 open source packages ship an affected version, including Jellyfin.Common. It affects 1 product.

PackageAffectedFixed in
Jellyfin.Common NuGetAll versions10.8.0
Jellyfin.Common NuGetAll versions10.8.0

Products include Jellyfin Jellyfin.

How do I fix CVE-2022-35909?

Upgrade Jellyfin.Common to 10.8.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2022-35909 being exploited?

There is no known exploitation of CVE-2022-35909 in the wild and no public exploit code.

Sources

Also known as GHSA-qwp3-5fw3-5wgv.

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