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CVE-2025-5754: WordPress Useful Tab Block plugin allows attackers to inject malicious scripts

CVE-2025-5754 · published 1 year ago

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 advisory text

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.

References

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker partial control

Severity

6.4 Medium

Exploitation

<1% chance of attack within 30 days

Type

CWE-79Cross-site Scripting (XSS)

Timeline

Published18 Jul 2025

Updated4 Nov 2026

First seen7 Mar 2026

Sources

CVE-2025-5754 · NVD

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