RCE in Rilwis Slim Seo – Ai Plugin, Lightweight, Fast & Automated
CVE-2026-104001
The The Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 4.11.1 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 authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes. A Subscriber-level user need only save the shortcode payload to their own Biographical Info field via the REST API or wp-admin profile page; the shortcode then executes on any unauthenticated front-end request that resolves that author's description, such as requests using the ?author= query parameter when auto_redirection is disabled.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/7a7c53b9-e9b6-4337-9c89-326e6…
- plugins.trac.wordpress.org/browser/slim-seo/tags/4.11.0/src/MetaTags/Helper.php
- plugins.trac.wordpress.org/browser/slim-seo/tags/4.11.0/src/MetaTags/Data.php
- plugins.trac.wordpress.org/browser/slim-seo/tags/4.11.0/src/MetaTags/Helper.php
- github.com/elightup/slim-seo/pull/296
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-104001?
- CVE-2026-104001 is a medium-severity vulnerability in Rilwis Slim Seo – Ai Plugin, Lightweight, Fast & Automated, classified under Code Injection. CVSS score: 5.4/10. Published 2026-10-16.
- How severe is CVE-2026-104001?
- Medium severity. CVSS v3 base score is 5.4 out of 10.