CVE-2024-3513 Cross-site scripting in Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor

Medium 6.4 Published 2 Jul 2024 Updated 8 Apr 2026

Authenticated contributors can inject arbitrary scripts via the title tag 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-2024-3513?

CVE-2024-3513 is a medium-severity cross-site scripting vulnerability in ultimateblocks Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor, published on 2 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Ultimate Blocks – WordPress Blocks Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the title tag (postTitleTag) parameter in all versions up to, and including, 3.1.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access and higher, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. CVE-2024-6362 appears to be a duplicate of this issue.

Weakness: CWE-79

Which versions are affected by CVE-2024-3513?

It affects 1 product.

Products include Dotcamp Ultimate Blocks.

How do I fix CVE-2024-3513?

No fix has been published for CVE-2024-3513 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-2024-3513 being exploited?

There is no known exploitation of CVE-2024-3513 in the wild and no public exploit code.

Sources

Also known as GHSA-v7mv-85hf-9fxh.