Sensitive information exposure in Ad Inserter WordPress plugin
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
The Ad Inserter plugin (Ad Manager & AdSense Ads) for WordPress from spacetime is affected in all versions up to and including 2.8.18. The ai_wp_footer_hook exposes sensitive information (CWE-200). An authenticated attacker with subscriber-level access or above can read the server's internal IP address, PHP configuration, WordPress and theme versions, and post meta values, including protected keys such as API tokens written by other plugins.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Ad Inserter (Ad Manager & AdSense Ads).
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Timeline
- 2026-10-13 Threatist record created from CVE-2026-89097
- 2026-10-13 Alias added: GHSA-r84v-5jjr-cxrx
- 2026-10-16 CISA SSVC decision points changed
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/60ef9840-12c3-408a-b304-3eff2fe33bb4?source=cve
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php#L4694
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php#L4943
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php#L13304
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.18/ad-inserter.php#L4755
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3709957%40ad-inserter&new=3709957%40ad-inserter
More spacetime vulnerabilities
- TI-2026-83232 Unauthenticated shortcode execution in Ad Inserter WordPress plugin CVSS 3.1MEDIUM 6.5
- TI-2026-83300 Cross-site scripting in WordPress Ad Inserter plugin CVSS 3.1HIGH 7.1
- TI-2026-63944 WordPress Ad Inserter plugin <= 2.8.18 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2024-32841 WordPress Ad Inserter plugin <= 2.7.37 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2026-10327 Missing authorization in spacetime Ad Inserter – Ad Manager & AdSense Ads CVSS 3.1MEDIUM 5.3
- TI-2026-10326 Ad Inserter <= 2.8.16 - Missing Authorization to Block Visibility Bypass via ai_ajax CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-89097 · CVE Program
- CVE-2026-89097 · NVD
- FIRST EPSS
- GHSA-r84v-5jjr-cxrx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences