CVE-2023-3821 Cross-site Scripting (XSS) - Stored in pimcore/pimcore

Medium 6.1 Published Updated

Stored Cross-Site Scripting in Pimcore allows attackers to inject malicious scripts, potentially leading to session hijacking or code execution.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2023-3821?

CVE-2023-3821 is a medium-severity cross-site scripting vulnerability in Pimcore Pimcore, published on 21 Jul 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Cross-site Scripting (XSS) - Stored in GitHub repository pimcore/pimcore prior to 10.6.4.

Weakness: CWE-79

Which versions are affected by CVE-2023-3821?

2 open source packages ship an affected version, including pimcore/pimcore. It affects 1 product.

PackageAffectedFixed in
pimcore/pimcore PackagistAll versions10.6.4
pimcore/pimcore PackagistAll versions10.6.4

Products include Pimcore Pimcore.

How do I fix CVE-2023-3821?

Upgrade pimcore/pimcore to 10.6.4 or later.

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-2023-3821 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3821 exists.

All Pimcore Pimcore vulnerabilities

Sources

Also known as GHSA-78q2-cv3p-x9fm.

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