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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-11900 Detail

Description

The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to and including 2.8.16 via the 'data' attribute of the [adinserter] shortcode. This is due to the replace_ai_tags() function processing a {reusable-block-N} tag pattern that calls get_post_field('post_content', N) without verifying the requesting user's capability with current_user_can('read_post'), without restricting the post type to 'wp_block', and without checking the post status. This makes it possible for authenticated attackers, with Contributor-level access and above, to read the full content of arbitrary posts including Private, Draft, Pending, Trashed, and password-protected posts owned by other users, by placing the shortcode in a post they own and previewing it.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.13/ad-inserter.php#L10569 Wordfence
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.13/ad-inserter.php#L10818 Wordfence
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.13/ad-inserter.php#L13083 Wordfence
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.13/ad-inserter.php#L2101 Wordfence
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.16/ad-inserter.php#L10569 Wordfence
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.16/ad-inserter.php#L10818 Wordfence
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.16/ad-inserter.php#L13083 Wordfence
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.16/ad-inserter.php#L2101 Wordfence
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3591792%40ad-inserter&new=3591792%40ad-inserter&sfp_email=&sfph_mail= Wordfence
https://www.wordfence.com/threat-intel/vulnerabilities/id/20f0e9ae-786b-4ba8-a6d5-92bf31ebc2c7?source=cve Wordfence

Weakness Enumeration

CWE-ID CWE Name Source
CWE-639 Authorization Bypass Through User-Controlled Key Wordfence  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-11900
NVD Published Date:
07/03/2026
NVD Last Modified:
07/03/2026
Source:
Wordfence