---
id: CVE-2026-102905
title: >-
  Ad Inserter <= 2.8.19 - Unauthenticated Arbitrary Shortcode Execution via 's'
  Search Parameter
summary: >-
  The The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is
  vulnerable to arbitrary shortcode execution in all versions up to, and
  including, 2.8.19 This is due to the software allowing users to execute an
  action that does not…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-94
vendor: spacetime
product: Ad Inserter – Ad Manager & AdSense Ads
affected:
  - ad_inserter_ad_manager_adsense_ads <= 2.8.19
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-30T17:24:39.208478Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T17:24:48.214Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-102905'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/a36f813c-97c5-466d-92e0-7341c12b5a46?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.19/class.php#L3297
  - url: >-
      https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.19/ad-inserter.php#L12974
  - url: >-
      https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.19/ad-inserter.php#L13142
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3770281/ad-inserter/trunk/ad-inserter.php
tags:
  - cve.org
epss: 0.00422
epssPercentile: 0.36654
ingestedAt: '2026-11-05T16:24:31.277Z'
---

## Overview

The The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.8.19 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. Exploitation requires an administrator to have configured an ad block containing a dynamic tag such as {title}, {tag}, {category}, or {smart-tag} with display enabled on search pages, which is a normal and documented plugin configuration.

## Affected

- `ad_inserter_ad_manager_adsense_ads <= 2.8.19`

## Remediation

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