🔐 CVE Alert

CVE-2026-102905

MEDIUM 6.5

Ad Inserter <= 2.8.19 - Unauthenticated Arbitrary Shortcode Execution via 's' Search Parameter

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

The The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.8.19 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. Exploitation requires an administrator to have configured an ad block containing a dynamic tag such as {title}, {tag}, {category}, or {smart-tag} with display enabled on search pages, which is a normal and documented plugin configuration.

CWE CWE-94
Vendor spacetime
Product ad inserter – ad manager & adsense ads
Published Oct 30, 2026
Last Updated Oct 30, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

spacetime / Ad Inserter – Ad Manager & AdSense Ads
0 ≤ 2.8.19

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/a36f813c-97c5-466d-92e0-7341c12b5a46?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.19/class.php#L3297 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.19/ad-inserter.php#L12974 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.19/ad-inserter.php#L13142 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3770281/ad-inserter/trunk/ad-inserter.php

Credits

Kuba