Cross-Site Scripting Vulnerability in Ad Inserter by Igor Funa
CVE-2026-107864

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Ad Inserter
Vendor
CVE Published:
12 October 2026

What is CVE-2026-107864?

The Ad Inserter plugin by Igor Funa is susceptible to a Cross-Site Scripting (XSS) vulnerability. This issue allows an attacker to inject malicious scripts into web pages through improper handling of user input during page generation. Affected versions include all prior to 2.8.18, putting websites utilizing this plugin at risk of exposing users to stored XSS attacks, potentially leading to session hijacking, data theft, and other security issues.

Affected Version(s)

Ad Inserter 0 <= 2.8.18

References

https://patchstack.com/database/wordpress/plugin/ad-inser...
vdb-entry

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

nh4tvd | Patchstack Bug Bounty Program
.