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6.1

Ultimate Member Plugin for WordPress allows attackers to inject malicious code via links

CVE-2026-1404
Summary

The Ultimate Member plugin for WordPress is vulnerable to a type of cyber attack that can inject malicious code into websites. This can happen if a user clicks on a link that has been designed to trick them into doing so. To protect your site, update the plugin to the latest version or consider disabling it until a fix is available.

Original title
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the filte...
Original description
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the filter parameters (e.g., 'filter_first_name') in all versions up to, and including, 2.11.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
nvd CVSS3.1 6.1
Vulnerability type
CWE-79 Cross-site Scripting (XSS)
Published: 18 Feb 2026 · Updated: 11 Mar 2026 · First seen: 6 Mar 2026