# CVE-2026-97077: WordPress Ad Inserter plugin unauthenticated cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-97077-unauthenticated-cross-site-scripting-xss-in-ad-inserter-2-8-18  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-30. Updated: 2026-09-30  
License: CC BY 4.0 with a link back

CVE-2026-97077 · Severity: high · CVSS 7.1 · Published 2026-09-30

Ad Inserter is a WordPress plugin that manages advertisement placement on websites. An unauthenticated attacker can inject malicious scripts that execute in visitors' browsers, allowing them to steal session data, hijack accounts, or redirect users to phishing sites. The vulnerability requires user interaction (such as clicking a malicious link) but affects all visitors regardless of their privileges.

Technologies: [Igor Funa Ad Inserter](https://junglewise.ai/threats/technologies/ad-inserter). Vendors: [Igor Funa](https://junglewise.ai/threats/vendors/igor-funa).

## Quick answers

**Is CVE-2026-97077 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-97077 being exploited in the wild.

**How severe is CVE-2026-97077?** High severity, with a CVSS score of 7.1, published 30 September 2026.

**Which products and versions are affected?** Igor Funa Ad Inserter <= 2.8.18.

**Is there a fix for CVE-2026-97077?** A patch was published on 2026-09-24: Patched in version 2.8.19 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-97077 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-97077?** Check whether you run Igor Funa Ad Inserter at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The plugin versions 2.8.18 and earlier contain an unauthenticated cross-site scripting vulnerability where user-supplied input is not properly sanitized before being reflected in page content. An unauthenticated attacker can craft a malicious URL or form input that causes arbitrary JavaScript to execute in the browser context of any visitor who clicks the link or visits an affected page. The vulnerability was patched in version 2.8.19.

## Affected products

- Igor Funa Ad Inserter <= 2.8.18

## Timeline

- 2026-09-30: disclosed: CVE-2026-97077 published
- 2026-09-24: patched: Patched in version 2.8.19

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/ad-inserter/vulnerability/wordpress-ad-inserter-plugin-2-8-18-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/ad-inserter/vulnerability/wordpress-ad-inserter-plugin-2-8-18-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [Igor Funa Ad Inserter XSS in content injection](https://junglewise.ai/threats/cve-2026-124262-improper-neutralization-of-script-related-html-tags-in-a-web)
- [Ad Inserter cross-site scripting in plugin](https://junglewise.ai/threats/cve-2026-105077-unauthenticated-cross-site-scripting-xss-in-ad-inserter-2-8-19)
- [Igor Funa Ad Inserter stored cross-site scripting](https://junglewise.ai/threats/cve-2026-118094-improper-neutralization-of-input-during-web-page-generation)
- [Igor Funa Ad Inserter reflected cross-site scripting](https://junglewise.ai/threats/cve-2026-114709-improper-neutralization-of-input-during-web-page-generation)
- [Igor Funa Ad Inserter reflected XSS in plugin settings](https://junglewise.ai/threats/cve-2026-114194-improper-neutralization-of-input-during-web-page-generation)