How severe is CVE-2026-1404?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Ultimatemember Ultimate Member – User Profile, Registration, Login, Directory, Content Restriction & Membership Plugin

CVE-2026-1404

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') i…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (36.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Ultimatemember Ultimate Member – User Profile, Registration, Login, Directory, Content Restriction & Membership Plugin — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-1404?: CVE-2026-1404 is a medium-severity vulnerability in Ultimatemember Ultimate Member – User Profile, Registration, Login, Directory, Content Restriction & Membership Plugin, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-18.
How severe is CVE-2026-1404?: Medium severity. CVSS v3 base score is 6.1 out of 10.