Vulnerability in Ad Inserter – Ad Manager & AdSense Ads — CVE-2026-107864

What to do now

Update Ad Inserter – Ad Manager & AdSense Ads to 2.8.19 or later.

Affected versions

• Everything up to and including 2.8.18

The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.8.18. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/09acf85a-37eb-40c0-9343-35b4e1c04a11?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/09acf85a-37eb-40c0-9343-35b4e1c04a11
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