---
id: CVE-2026-88828
title: >-
  The Blacklist Manager for WooCommerce WordPress plugin from 1.3.0 to 2.3.1
  does not enforce its user blocking on every authentication path, allowing the
  holder of an account the site owner has blocked to keep authenticating with
  that acc…
summary: >-
  The Blacklist Manager for WooCommerce WordPress plugin from 1.3.0 to 2.3.1
  does not enforce its user blocking on every authentication path, allowing the
  holder of an account the site owner has blocked to keep authenticating with
  that acc…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-288
product: Blacklist Manager
affected:
  - blacklist_manager >= 1.3.0 < 2.3.2
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T07:17:21.063'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88828'
references:
  - url: 'https://wpscan.com/vulnerability/52804421-8988-4d8a-9143-04683d05873d/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-28T07:04:53.494Z'
---

## Overview

The Blacklist Manager for WooCommerce WordPress plugin from 1.3.0 to 2.3.1 does not enforce its user blocking on every authentication path, allowing the holder of an account the site owner has blocked to keep authenticating with that account's privileges, without the block being enforced or recorded.

## Remediation

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