Vulnerability Description
The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL Parameters in iframe Mode in all versions up to, and including, 2.8.15 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires that iframe mode (AI_OPTION_IFRAME) is enabled on at least one ad block displayed on the targeted page, which is a non-default but supported configuration commonly used for AdSense and JavaScript-based ads.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L34
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L34
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L34
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L34
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L34
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L34
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0d40c05d-dc30-47b1-aea
FAQ
What is CVE-2026-9280?
CVE-2026-9280 is a vulnerability with a CVSS score of 6.1 (MEDIUM). The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL Parameters in iframe Mode in all versions up to, and including, 2.8.15 due to in...
How severe is CVE-2026-9280?
CVE-2026-9280 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-9280?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.