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CVE-2024-3338 Colibri Page Builder <= 1.0.262 - Authenticated (Author+) Stored Cross-Site Scripting

Medium 4.4 Published Updated

Authenticated attackers can inject arbitrary scripts via image alt data in Colibri Page Builder, executing them when users view pages.

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-2024-3338?

CVE-2024-3338 is a medium-severity cross-site scripting vulnerability in extendthemes Colibri Page Builder, published on 2 May 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via image alt data parameter in all versions up to, and including, 1.0.262 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-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-2024-3338?

It affects 1 product.

Products include Extendthemes Colibri Page Builder.

How do I fix CVE-2024-3338?

No fix has been published for CVE-2024-3338 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-2024-3338 being exploited?

There is no known exploitation of CVE-2024-3338 in the wild and no public exploit code.

Sources

Also known as GHSA-gf9p-76p3-4hqw.

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