---
id: "CVE-2026-118094"
kind: "vulnerability"
aliases: ["CVE-2026-118094"]
title: "Ad Inserter WordPress plugin: stored XSS through 2.8.18"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["ad-inserter", "package", "self-hosted", "wordpress"]
not_affected_if: ["plugin-not-installed"]
published_at: "2026-10-29T13:17:08+00:00"
first_seen_at: "2026-10-29T13:25:07+00:00"
updated_at: "2026-10-29T13:25:43+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118094", "first_seen_at": "2026-10-29T13:25:07+00:00"}]
---

# Ad Inserter WordPress plugin: stored XSS through 2.8.18

Ad Inserter, a WordPress plugin by Igor Funa, fails to neutralize input when generating pages, letting stored cross-site scripting payloads persist. An attacker can run scripts in the browsers of visitors or administrators who view the affected content.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Ad Inserter plugin version in the WordPress admin under Plugins; versions up to and including `2.8.18` are listed as affected.

## Fix

- Ad Inserter: unknown (sources do not name a fixed version)

## Timeline

- 2026-10-29T13:25:07+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118094

## From the sources

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Igor Funa Ad Inserter ad-inserter allows Stored XSS.This issue affects Ad Inserter: from n/a through 2.8.18.

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