Information disclosure in Spacetime Ad Inserter – Manager & Adsense Ads
CVE-2026-89097
The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.8.18 via the ai_wp_footer_hook. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract sensitive data including the server's internal IP address, PHP configuration, WordPress and theme versions, hardening constants, the plugin's full block matrix, and all post meta values including underscore-prefixed protected keys such as API tokens and private integration state written by other plugins.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/60ef9840-12c3-408a-b304-3eff2…
- plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php
- plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php
- plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php
- plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-89097?
- CVE-2026-89097 is a medium-severity vulnerability in Spacetime Ad Inserter – Manager & Adsense Ads, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-10-13.
- How severe is CVE-2026-89097?
- Medium severity. CVSS v3 base score is 4.3 out of 10.