---
id: CVE-2026-8489
title: >-
  The Ultimate Member – User Profile, Registration, Login, Member Directory,
  Content Restriction & Membership Plugin plugin for WordPress is vulnerable to
  Stored Cross-Site Scripting via the 'about_me' parameter in all versions up
  to, and …
summary: >-
  The Ultimate Member – User Profile, Registration, Login, Member Directory,
  Content Restriction & Membership Plugin plugin for WordPress is vulnerable to
  Stored Cross-Site Scripting via the 'about_me' parameter in all versions up
  to, and …
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-07-03'
updated: '2026-07-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-8489'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/class-fields.php#L4577
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/class-form.php#L854
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/class-profile.php#L479
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/um-actions-form.php#L628
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/core/um-filters-fields.php#L271
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-fields.php#L4577
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-form.php#L854
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-profile.php#L479
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/um-actions-form.php#L628
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/um-filters-fields.php#L271
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/229a4e61-571c-44c6-9972-4dfc743afffe?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-07-04T04:55:39.396Z'
epss: 0.00419
epssPercentile: 0.35733
---

## Overview

The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'about_me' parameter in all versions up to, and including, 2.11.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.