---
id: CVE-2026-104001
title: >-
  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 act…
summary: >-
  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 act…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-94
vendor: rilwis
product: 'Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated'
affected:
  - slim_seo_ai_seo_plugin_lightweight_fast_automated <= 4.11.1
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:17:02.993'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104001'
references:
  - url: 'https://github.com/elightup/slim-seo/pull/296'
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.11.0/src/MetaTags/Data.php#L76
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.11.0/src/MetaTags/Helper.php#L168
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/slim-seo/tags/4.11.0/src/MetaTags/Helper.php#L26
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&new=3742833%40slim-seo%2Ftags%2F4.11.2&old=3717070%40slim-seo%2Ftags%2F4.11.0
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/7a7c53b9-e9b6-4337-9c89-326e66c4bd27?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
epss: 0.00227
epssPercentile: 0.13323
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T14:56:57.155340Z'
ingestedAt: '2026-10-16T06:00:00.391Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.