CVE-2025-2918 Cross-site scripting in Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor

Medium 6.4 Published 10 Jun 2025 Updated 8 Apr 2026

Authenticated contributors can inject arbitrary scripts via widgets, leading to stored XSS execution on victim pages.

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-2025-2918?

CVE-2025-2918 is a medium-severity cross-site scripting vulnerability in ultimateblocks Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor, published on 10 Jun 2025. 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 multiple widgets in all versions up to, and including, 3.3.3 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-2025-2918?

It affects 1 product.

Products include Dotcamp Ultimate Blocks.

How do I fix CVE-2025-2918?

No fix has been published for CVE-2025-2918 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-2025-2918 being exploited?

There is no known exploitation of CVE-2025-2918 in the wild and no public exploit code.

Sources

Also known as GHSA-7wrh-jx7h-gpfr.