# CVE-2026-118094: Igor Funa Ad Inserter stored cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-118094-improper-neutralization-of-input-during-web-page-generation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-29. Updated: 2026-10-29  
License: CC BY 4.0 with a link back

CVE-2026-118094 · Severity: medium · CVSS 6.5 · Published 2026-10-29

Ad Inserter is a WordPress plugin that allows site administrators to insert advertisements into web pages. A stored cross-site scripting vulnerability in versions up to 2.8.18 allows attackers with contributor or developer privileges to inject malicious scripts that execute when other users view the site, potentially stealing visitor data or hijacking their accounts.

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-2026-118094 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-118094 being exploited in the wild.

**How severe is CVE-2026-118094?** Medium severity, with a CVSS score of 6.5, published 29 October 2026.

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

**Is there a fix for CVE-2026-118094?** Yes: fixed in 2.8.19. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-118094 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-118094?** 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.

## How to fix

- Fixed in 2.8.19

## Technical details

A stored XSS vulnerability exists in Ad Inserter due to improper neutralization of user input during web page generation. The vulnerability requires user interaction and privilege escalation (contributor or developer role) to exploit, allowing an authenticated attacker to inject persistent malicious scripts that execute in the context of other users' browsers.

## Affected products

- Igor Funa Ad Inserter through 2.8.18

## Timeline

- 2026-10-26: disclosed
- 2026-10-29: advisory
- 2026-10-29: patched

## 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-5?_s_id=cve](https://patchstack.com/database/wordpress/plugin/ad-inserter/vulnerability/wordpress-ad-inserter-plugin-2-8-18-cross-site-scripting-xss-vulnerability-5?_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 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)
- [Igor Funa Ad Inserter stored cross-site scripting](https://junglewise.ai/threats/cve-2026-107864-improper-neutralization-of-input-during-web-page-generation)