CVE-2024-0689 Custom Field Suite <= 2.6.4 - Authenticated (Admin+) Stored Cross-Site Scripting

Medium 4.4 Published Updated

Administrators can inject scripts via meta imports in Custom Field Suite, affecting multi-site or restricted HTML installations.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-0689?

CVE-2024-0689 is a medium-severity cross-site scripting vulnerability in mgibbs189 Custom Field Suite, published on 29 Feb 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a meta import in all versions up to, and including, 2.6.4 due to insufficient input sanitization and output escaping on the meta values. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Weakness: CWE-79

Which versions are affected by CVE-2024-0689?

It affects 1 product.

Products include Custom Field Suite Project Custom Field Suite.

How do I fix CVE-2024-0689?

No fix has been published for CVE-2024-0689 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-2024-0689 being exploited?

There is no known exploitation of CVE-2024-0689 in the wild and no public exploit code.

Sources

Also known as GHSA-m39f-3w96-jj8p.

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