---
id: CVE-2026-84960
title: >-
  The WP-Members Membership Plugin plugin for WordPress is vulnerable to
  Reflected Cross-Site Scripting via URL Query String in all versions up to, and
  including, 3.5.6 due to insufficient input sanitization and output escaping
summary: >-
  The WP-Members Membership Plugin plugin for WordPress is vulnerable to
  Reflected Cross-Site Scripting via URL Query String in all versions up to, and
  including, 3.5.6 due to insufficient input sanitization and output escaping.
  This makes…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: cbutlerjr
product: WP-Members Membership Plugin
affected:
  - wp-members_membership_plugin <= 3.5.6
published: '2026-09-11'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T17:19:30.163'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84960'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-members/tags/3.5.6/includes/class-wp-members-forms.php#L2202
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-members/tags/3.5.6/includes/class-wp-members-forms.php#L2203
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3679958%40wp-members%2Ftrunk&old=3471137%40wp-members%2Ftrunk&sfp_email=&sfph_mail=
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/ab8bd8c8-d9aa-4223-9400-4d500446b598?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T16:40:29.323956Z'
epss: 0.00368
epssPercentile: 0.27977
ingestedAt: '2026-09-11T16:45:47.927Z'
---

## Overview

The WP-Members Membership Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL Query String in all versions up to, and including, 3.5.6 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. Successful exploitation requires the victim to first visit the attacker-crafted URL and then click the Terms of Service link rendered on the resulting registration page.

## Remediation

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