CVE-2026-1404
Ultimate Member <= 2.11.1 - Reflected Cross-Site Scripting via Filter Parameters
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.
| CWE | CWE-79 |
| Vendor | ultimatemember |
| Product | ultimate member – user profile, registration, login, member directory, content restriction & membership plugin |
| Published | Feb 18, 2026 |
| Last Updated | Apr 8, 2026 |
Get instant alerts for ultimatemember ultimate member – user profile, registration, login, member directory, content restriction & membership plugin
Be the first to know when new medium vulnerabilities affecting ultimatemember ultimate member – user profile, registration, login, member directory, content restriction & membership plugin are published — delivered to Slack, Telegram or Discord.
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N