CVE-2024-3818 Cross-site scripting in Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns

Medium 5.4 Published Updated

Authenticated contributors can inject arbitrary scripts via the Social Icons block, leading to code execution when pages are viewed.

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-2024-3818?

CVE-2024-3818 is a medium-severity cross-site scripting vulnerability in wpdevteam Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns, published on 19 Apr 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 Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's "Social Icons" block in all versions up to, and including, 4.5.9 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-2024-3818?

It affects 1 product.

Products include Wpdeveloper Essential Blocks.

How do I fix CVE-2024-3818?

No fix has been published for CVE-2024-3818 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-2024-3818 being exploited?

There is no known exploitation of CVE-2024-3818 in the wild and no public exploit code.

Sources

Also known as GHSA-wmqf-xv94-hx62.

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