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.
CVE-2026-9280
Score 6.1 from GitHub Security Advisory published 2026-06-06. a secondary CVSS source baseline 6.1; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(high)
- EPSS
- 13.1%
- KEV
- Not listed
Published
June 6, 2026
Last Modified
June 8, 2026
References (8)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L3460
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L3462
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.11/class.php#L3470
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L3460
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L3462
- security@wordfencehttps://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.15/class.php#L3470
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3552607%40ad-inserter&new=3552607%40ad-inserter&sfp_email=&sfph_mail=
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/0d40c05d-dc30-47b1-aea5-cd2b72d4c4c0?source=cve
Vendor Advisories for CVE-2026-9280(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 19× in last 7d / 88× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 19:46 UTCEG score recompute
- 2026-07-05 19:46 UTCGHSA enrichment
- 2026-07-05 02:31 UTCEPSS rescore
- 2026-07-04 20:21 UTCEG score recompute
- 2026-07-04 20:21 UTCGHSA enrichment
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-03 17:37 UTCEG score recompute
- 2026-07-03 17:36 UTCGHSA enrichment
- 2026-07-02 18:12 UTCEG score recompute
- 2026-07-02 18:12 UTCGHSA enrichment
- 2026-07-01 18:09 UTCEG score recompute
- 2026-07-01 18:09 UTCGHSA enrichment
- 2026-07-01 15:07 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-30 18:01 UTCEG score recompute
- 2026-06-30 18:01 UTCGHSA enrichment
- 2026-06-29 14:07 UTCEG score recompute
- 2026-06-29 14:07 UTCGHSA enrichment
- 2026-06-29 14:06 UTCEPSS rescore
- 2026-06-28 14:42 UTCEG score recompute
- 2026-06-28 14:42 UTCGHSA enrichment
- 2026-06-28 14:07 UTCEPSS rescore
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- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-27 15:17 UTCEG score recompute
- 2026-06-27 15:17 UTCGHSA enrichment
- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-26 15:52 UTCEG score recompute
- 2026-06-26 15:52 UTCGHSA enrichment
- 2026-06-25 16:11 UTCEG score recompute
- 2026-06-25 16:11 UTCGHSA enrichment
- 2026-06-25 13:50 UTCEPSS rescore
- 2026-06-24 16:46 UTCEG score recompute
- 2026-06-24 16:45 UTCGHSA enrichment
- 2026-06-24 14:05 UTCEPSS rescore
- 2026-06-23 21:33 UTCEPSS rescore
- 2026-06-23 17:17 UTCEG score recompute
- 2026-06-23 17:17 UTCGHSA enrichment
- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-22 06:23 UTCEG score recompute
- 2026-06-22 06:23 UTCGHSA enrichment
- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 01:59 UTCEPSS rescore
- 2026-06-20 21:59 UTCEG score recompute
- 2026-06-20 21:59 UTCGHSA enrichment
- 2026-06-19 19:26 UTCEPSS rescore
- 2026-06-19 19:12 UTCEG score recompute
- 2026-06-19 19:12 UTCGHSA enrichment
- 2026-06-18 19:47 UTCEG score recompute
- 2026-06-18 19:47 UTCGHSA enrichment
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-17 20:20 UTCEG score recompute
- 2026-06-17 20:20 UTCGHSA enrichment
- 2026-06-17 17:53 UTCEPSS rescore
- 2026-06-16 20:55 UTCEG score recompute
- 2026-06-16 20:55 UTCGHSA enrichment
- 2026-06-16 17:53 UTCEPSS rescore
- 2026-06-15 21:30 UTCEG score recompute
- 2026-06-15 21:30 UTCGHSA enrichment
- 2026-06-15 17:49 UTCEPSS rescore
- 2026-06-15 17:49 UTCEPSS rescore
- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-14 22:06 UTCEG score recompute
- 2026-06-14 22:06 UTCGHSA enrichment
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-13 22:42 UTCEG score recompute
- 2026-06-13 22:42 UTCGHSA enrichment
- 2026-06-12 23:16 UTCEG score recompute
- 2026-06-12 23:16 UTCGHSA enrichment
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-11 23:52 UTCEG score recompute
- 2026-06-11 23:52 UTCGHSA enrichment
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-11 00:27 UTCEG score recompute
- 2026-06-11 00:27 UTCGHSA enrichment
- 2026-06-10 22:19 UTCEPSS rescore
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-10 01:02 UTCEG score recompute
- 2026-06-10 01:02 UTCGHSA enrichment
- 2026-06-09 01:38 UTCEG score recompute
- 2026-06-09 01:38 UTCGHSA enrichment
- 2026-06-08 14:17 UTCEPSS rescore
- 2026-06-08 02:13 UTCEG score recompute
- 2026-06-08 02:13 UTCGHSA enrichment
- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-07 02:49 UTCEG score recompute
- 2026-06-07 02:49 UTCGHSA enrichment
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-06 03:24 UTCEG score recompute
Frequently asked(5)
What is CVE-2026-9280?
When was CVE-2026-9280 disclosed?
Is CVE-2026-9280 actively exploited?
What is the CVSS score of CVE-2026-9280?
How do I remediate CVE-2026-9280?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-9280
Is Your Infrastructure Affected by CVE-2026-9280?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.