CVE-2026-1404CWE-79

Ultimate Member <= 2.11.1 - Reflected Cross-Site Scripting via Filter Parameters

Medium · published February 18, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
15.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00251 · 15.6th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-18T14:24Z
EPSS history
Timeline
  • 18 FEB 14:24Z
    Ultimate Member <= 2.11.1 - Reflected Cross-Site Scripting via Filter Parameters
    cvelistv5