CVE-2026-5362 Pimcore Platform v12.3.3 - Stored XSS in Document Editable Embed rendering

Medium 4.8 Published Updated

Authenticated attackers can inject malicious scripts into document embeds, leading to script execution when pages are rendered.

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-2026-5362?

CVE-2026-5362 is a medium-severity cross-site scripting vulnerability in Pimcore Pimcore, published on 27 Apr 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

An authenticated attacker with permission to edit document content can store crafted HTML/JavaScript in a Document embed editable and cause script execution when the published page is rendered.

This issue affects pimcore: v12.3.3.

Weakness: CWE-79

Which versions are affected by CVE-2026-5362?

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

PackageAffectedFixed in
pimcore/pimcore PackagistAll versionsNone
pimcore/pimcore PackagistAll versionsNone

Products include Pimcore Pimcore.

How do I fix CVE-2026-5362?

No fix has been published for CVE-2026-5362 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-2026-5362 being exploited?

There is no known exploitation of CVE-2026-5362 in the wild and no public exploit code.

All Pimcore Pimcore vulnerabilities

Sources

Also known as GHSA-7gxw-q9j5-mrj4.

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