CVE-2026-9280: medium-severity vulnerability in spacetime Ad Inserter – Ad Manager & AdSense Ads
Ad Inserter <= 2.8.15 - Reflected Cross-Site Scripting via URL Parameters in iframe Mode
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.1epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
spacetime · Ad Inserter – Ad Manager & AdSense AdsRelated CVEs — spacetime Ad Inserter – Ad Manager & AdSense Ads
In the same product, most dangerous first.
CVE-2023-4645MEDIUMAd Inserter <= 2.7.30 - Unauthenticated Sensitive Information Exposure via ai_ajaxEPSS 0.8%CVE-2023-4668MEDIUMAd Inserter <= 2.7.30 - Unauthenticated Sensitive Information Exposure via ai-debug-processing-feEPSS 0.6%CVE-2026-11900MEDIUMAd Inserter <= 2.8.16 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Post Content Disclosure via 'data' Shortcode AttributeEPSS 0.5%CVE-2026-11983MEDIUMAd Inserter <= 2.8.16 - Missing Authorization to Block Visibility Bypass via ai_ajaxEPSS 0.4%CVE-2026-102905MEDIUMAd Inserter <= 2.8.19 - Unauthenticated Arbitrary Shortcode Execution via 's' Search ParameterEPSS 0.4%CVE-2026-11984MEDIUMAd Inserter <= 2.8.16 - Missing Authorization to Unauthenticated Header/Footer Code Disclosure via 'ai-debug-code' ParameterEPSS 0.4%
References
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L3460https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L3462https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L3470https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L3460https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L3462https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L3470https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3552607%40ad-inserter&new=3552607%40ad-inserter&sfp_email=&sfph_mail=https://www.wordfence.com/threat-intel/vulnerabilities/id/0d40c05d-dc30-47b1-aea5-cd2b72d4c4c0?source=cve