---
id: CVE-2025-12014
title: >-
  The NGINX Cache Optimizer plugin for WordPress is vulnerable to unauthorized
  modification of data due to a missing capability check on the
  'nginxcacheoptimizer-blacklist-update' AJAX action in all versions up to, and
  including, 1.1
summary: >-
  The NGINX Cache Optimizer plugin for WordPress is vulnerable to unauthorized
  modification of data due to a missing capability check on the
  'nginxcacheoptimizer-blacklist-update' AJAX action in all versions up to, and
  including, 1.1. This…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-862
published: '2025-10-24'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-12014'
references:
  - url: 'https://wordpress.org/plugins/nginx-cache-optimizer/'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/7dd18e4e-9aa6-403e-aec3-21f33d739066?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00201
epssPercentile: 0.0915
ingestedAt: '2026-10-08T11:31:27.571Z'
---

## Overview

The NGINX Cache Optimizer plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'nginxcacheoptimizer-blacklist-update' AJAX action in all versions up to, and including, 1.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to add URLs to the Exclude URLs From Dynamic Caching setting.

## Remediation

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