CVE-2026-1404
Ultimate Member <= 2.11.1 - Reflected Cross-Site Scripting via Filter Parameters
CVSS Score
6.1
EPSS Score
0.1%
EPSS Percentile
21th
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 | Feb 18, 2026 |
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
ultimatemember / Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
* ≤ 2.11.1
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/ba62b804-f101-4e29-8304-fb2b7dad333c?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-member/trunk/templates/members.php#L348 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-member/trunk/assets/js/um-members.js#L515 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3458086/
Credits
Dmitrii Ignatyev