U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-12408 Detail

Description

The Slim SEO – A Fast & Automated SEO Plugin For WordPress plugin for WordPress is vulnerable to Unauthorized Private Content Disclosure in all versions up to, and including, 4.9.8 via the `/wp-json/slim-seo/meta-tags/ai` REST API endpoint. This is due to the endpoint's `permission_callback` performing only a top-level `edit_posts` capability check without verifying that the requesting user has read access to the specific post supplied via the `object.ID` parameter, allowing the `generate` function to pass the attacker-controlled post ID to `Data::get_post_content()`, which calls `get_post()` regardless of post status or ownership. This makes it possible for authenticated attackers with Contributor-level access and above to retrieve AI-generated summaries of the raw `post_content` of arbitrary posts they are not authorized to view — including private posts, drafts, pending, future, and password-protected content authored by other users — with the substance of the protected content disclosed via the HTTP response.


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

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

URL Source(s) Tag(s)
https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.9.5/src/MetaTags/AI.php#L21 Wordfence
https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.9.5/src/MetaTags/AI.php#L55 Wordfence
https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.9.5/src/MetaTags/Data.php#L117 Wordfence
https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.9.8/src/MetaTags/AI.php#L21 Wordfence
https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.9.8/src/MetaTags/AI.php#L55 Wordfence
https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.9.8/src/MetaTags/Data.php#L117 Wordfence
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3576523%40slim-seo&new=3576523%40slim-seo&sfp_email=&sfph_mail= Wordfence
https://www.wordfence.com/threat-intel/vulnerabilities/id/6e6603a0-8f35-49fb-a517-ba6344538c4d?source=cve Wordfence

Weakness Enumeration

CWE-ID CWE Name Source
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Wordfence  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-12408
NVD Published Date:
07/01/2026
NVD Last Modified:
07/01/2026
Source:
Wordfence