CVE-2026-12408
MEDIUMSlim SEO <= 4.9.8 - Authenticated (Contributor+) Insufficient Authorization to Private Content Disclosure via 'object.ID' Parameter
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-12408. PoCs published by HermesNA-1.
AI-analyzed exploit summary This repository contains an auto-generated stub module for CVE-2026-12408, an unauthorized private content disclosure vulnerability in the Slim SEO WordPress plugin (versions ≤4.9.8). The code includes placeholder logic for probing a target but lacks actual exploit implementation, referencing vulnerable code paths in the plugin's AI.php and Data.php files.
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.
Exploits (1)
This repository contains an auto-generated stub module for CVE-2026-12408, an unauthorized private content disclosure vulnerability in the Slim SEO WordPress plugin (versions ≤4.9.8). The code includes placeholder logic for probing a target but lacks actual exploit implementation, referencing vulnerable code paths in the plugin's AI.php and Data.php files.
References (8)
Scores
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N