{
 "id": "WPSEC-2026-0781",
 "url": "https://wpsec.com/vuln/WPSEC-2026-0781/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-0781/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-0781/index.md",
 "title": "ThinkRank AI SEO <= 2.14.2 - Authenticated (Contributor+) Missing Authorization to Restricted ThinkRank REST Endpoints via Mixed-Case Route",
 "description": "The ThinkRank AI SEO plugin for WordPress is vulnerable to Missing Authorization via mixed-case REST routes in all versions up to, and including, 2.14.2. This is due to the Role Manager REST gate (Role_Manager::gate_rest) and Capability_Manager::capability_for_route() comparing the raw request route against lowercase '/thinkrank/v1/' and '/thinkrank-pro/v1/' prefixes and section keys, while the WordPress REST server matches routes case-insensitively. A request to /ThinkRank/v1/... skips the gate entirely, including the base ThinkRank access check, and a mixed-case section name falls back to the base access capability. This makes it possible for authenticated attackers with Contributor-level access and above, who have not been granted ThinkRank access, to reach endpoints whose own permission check only requires edit_posts. They can run the site's AI generation features using its configured AI provider and read ThinkRank section settings, such as Global SEO, sitemap, social media and robots settings.",
 "plugin": {
  "slug": "thinkrank",
  "name": "ThinkRank AI SEO",
  "full_name": "ThinkRank AI SEO – AI SEO Plugin for WordPress: Schema, XML Sitemaps, Meta Tags, Search Console & Local SEO",
  "wordpress_org": "https://wordpress.org/plugins/thinkrank/",
  "advisories_url": "https://wpsec.com/vuln/plugin/thinkrank/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/thinkrank"
 },
 "type": "NO AUTHORISATION",
 "cwe": [
  "CWE-178"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 5.4,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": "1.12.0",
    "from_inclusive": true,
    "to": "2.14.3",
    "to_inclusive": false
   }
  ],
  "text": [
   "from 1.12.0 before 2.14.3"
  ]
 },
 "introduced_in": "1.12.0",
 "fixed_in": "2.14.3",
 "remediation": "Update to 2.14.3 or later.",
 "fix_released": "2026-10-11T05:58:09+00:00",
 "published": "2026-10-12T06:44:03+00:00",
 "updated": "2026-10-11T11:41:32.663743+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-0781/",
  "https://plugins.svn.wordpress.org/thinkrank/tags/2.14.3/",
  "https://wordpress.org/plugins/thinkrank/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/thinkrank",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Medium",
  "affected_versions": "Medium",
  "as_of": "2026-10-12"
 }
}