CVE-2024-6432 Cross-site scripting in Content Blocks (Custom Post Widget)

Medium 6.4 Published 20 Feb 2025 Updated 8 Apr 2026

Authenticated attackers can inject arbitrary scripts via the content parameter, leading to stored XSS execution for other users.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-6432?

CVE-2024-6432 is a medium-severity cross-site scripting vulnerability in vanderwijk Content Blocks (Custom Post Widget), published on 20 Feb 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Content Blocks (Custom Post Widget) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘content’ parameter within the plugin's shortcode Content Block in all versions up to, and including, 3.3.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Weakness: CWE-79

Which versions are affected by CVE-2024-6432?

It affects 1 product.

Products include Vanderwijk Content Blocks.

How do I fix CVE-2024-6432?

No fix has been published for CVE-2024-6432 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-2024-6432 being exploited?

There is no known exploitation of CVE-2024-6432 in the wild and no public exploit code.

Sources

Also known as GHSA-w4pr-2hxh-45hj.