CVE-2024-4451 Cross-site scripting in Colibri Page Builder

Medium 6.4 Published 7 Jun 2024 Updated 8 Apr 2026

Authenticated attackers can inject arbitrary scripts via the video player shortcode, leading to code execution when users view the page.

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-2024-4451?

CVE-2024-4451 is a medium-severity cross-site scripting vulnerability in extendthemes Colibri Page Builder, published on 7 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's colibri_video_player shortcode in all versions up to, and including, 1.0.276 due to insufficient input sanitization and output escaping on user supplied attributes. 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-2024-4451?

It affects 1 product.

Products include Extendthemes Colibri Page Builder.

How do I fix CVE-2024-4451?

No fix has been published for CVE-2024-4451 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-2024-4451 being exploited?

There is no known exploitation of CVE-2024-4451 in the wild and no public exploit code.

Sources

Also known as GHSA-3w78-v9jq-vw22.