Auth bypass in Spacetime Ad Inserter – Manager & Adsense Ads

CVE-2026-11984

The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.8.16 due to a missing capability check on the `ai-debug-code` URL-parameter. This makes it possible for unauthenticated attackers to view administrator-configured header and footer code blocks that have been disabled from public display.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-11984: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-11984?
CVE-2026-11984 is a medium-severity vulnerability in Spacetime Ad Inserter – Manager & Adsense Ads, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-09-16.
How severe is CVE-2026-11984?
Medium severity. CVSS v3 base score is 5.3 out of 10.