vulnerability

WordPress Plugin: ultimate-blocks: CVE-2025-2918: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Severity
5
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:N)
Published
Jun 9, 2025
Added
Jun 10, 2025
Modified
Apr 29, 2026

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.

Solution

ultimate-blocks-plugin-cve-2025-2918
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.