---
id: CVE-2026-89097
title: >-
  The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable
  to Sensitive Information Exposure in all versions up to, and including, 2.8.18
  via the ai_wp_footer_hook
summary: >-
  The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable
  to Sensitive Information Exposure in all versions up to, and including, 2.8.18
  via the ai_wp_footer_hook. This makes it possible for authenticated attackers,
  w…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-200
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T08:17:01.077'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89097'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php#L13304
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php#L4694
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php#L4755
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php#L4943
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3709957%40ad-inserter&new=3709957%40ad-inserter
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/60ef9840-12c3-408a-b304-3eff2fe33bb4?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-10-13T08:19:03.895Z'
---

## Overview

The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.8.18 via the ai_wp_footer_hook. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract sensitive data including the server's internal IP address, PHP configuration, WordPress and theme versions, hardening constants, the plugin's full block matrix, and all post meta values including underscore-prefixed protected keys such as API tokens and private integration state written by other plugins.

## Remediation

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