CVE-2024-58321 Kentico Xperience <= 13.0.159 Form Validation Stored XSS

Medium 5.1 Published Updated

Attackers can inject malicious scripts via form validation rules, leading to script execution in users' 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-2024-58321?

CVE-2024-58321 is a medium-severity cross-site scripting vulnerability in Kentico Xperience, published on 18 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A stored cross-site scripting vulnerability in Kentico Xperience allows attackers to inject malicious scripts via form validation rule configuration. Attackers can exploit this vulnerability to execute malicious scripts that will run in users' browsers.

Weakness: CWE-79

Which versions are affected by CVE-2024-58321?

It affects 1 product.

Products include Kentico Xperience.

How do I fix CVE-2024-58321?

No fix has been published for CVE-2024-58321 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-2024-58321 being exploited?

There is no known exploitation of CVE-2024-58321 in the wild and no public exploit code.

All Kentico Xperience vulnerabilities

Sources

Also known as GHSA-w9mh-c54h-w267.

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