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6.4
CVE-2025-5754: WordPress Useful Tab Block plugin allows attackers to inject malicious scripts
CVE-2025-5754
Summary
An attacker with contributor-level access to a WordPress site using the Useful Tab Block plugin can inject malicious web scripts into certain pages, which can be triggered when a user views those pages. This affects all versions of the plugin up to 1.3.2. To protect your site, update to the latest version of the plugin as soon as possible.
Original title
The Useful Tab Block – Responsive & AMP-Compatible plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘className’ parameter in all versions up to, and including, 1.3.2 due to...
Original description
The Useful Tab Block – Responsive & AMP-Compatible plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘className’ parameter in all versions up to, and including, 1.3.2 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.
nvd CVSS3.1
6.4
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
Published: 18 Jul 2025 · Updated: 15 Jun 2026 · First seen: 7 Mar 2026