CVE-2026-9280: Igor Funa Ad Inserter reflected XSS in iframe mode

CVE-2026-9280 · Severity: medium · CVSS 6.1 · Published 2026-06-06

The Ad Inserter plugin for WordPress, which manages advertising displays like Google AdSense, contains a security flaw that allows attackers to run malicious scripts in a user's browser. This occurs when a user is tricked into clicking a specially crafted link while the plugin is configured to use 'iframe mode' for ads. An exploit could lead to unauthorized actions being performed on behalf of the user or the theft of sensitive session information.

Technologies: Igor Funa Ad Inserter. Vendors: Igor Funa.

Quick answers

Is CVE-2026-9280 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-9280 being exploited in the wild.
How severe is CVE-2026-9280?
Medium severity, with a CVSS score of 6.1, published 6 June 2026.
Which products and versions are affected?
Igor Funa Ad Inserter Up to and including 2.8.15.
Is there a fix for CVE-2026-9280?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-9280 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-9280?
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

A reflected cross-site scripting (XSS) vulnerability exists in the Ad Inserter plugin for WordPress due to improper sanitization of URL parameters when the plugin is operating in iframe mode (AI_OPTION_IFRAME). Unauthenticated attackers can exploit this by crafting a malicious URL that, when visited by a victim, executes arbitrary JavaScript in the context of the victim's browser session. This vulnerability requires the non-default but supported iframe configuration to be enabled on at least one active ad block. The issue affects all versions up to 2.8.15; users should update to a patched version if available.

Affected products

  • Igor Funa Ad Inserter – Ad Manager & AdSense Ads Up to and including 2.8.15

Timeline

  • 2026-06-06: disclosed
  • 2026-06-06: advisory

References

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