Ad Inserter <= 2.8.15 - Reflected Cross-Site Scripting via URL Parameters in iframe Mode
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
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
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9280
- 2026-10-03 Alias added: GHSA-m3rj-j76j-78jj
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0d40c05d-dc30-47b1-aea5-cd2b72d4c4c0?source=cve
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L3470
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L3462
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L3460
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L3470
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L3462
- https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L3460
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3552607%40ad-inserter&new=3552607%40ad-inserter&sfp_email=&sfph_mail=
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-2026-9280 · CVE Program
- CVE-2026-9280 · NVD
- FIRST EPSS
- GHSA-m3rj-j76j-78jj · 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