{
 "id": "WPSEC-2026-1945",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1945/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1945/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1945/index.md",
 "title": "User Frontend <= 4.3.13 - Unauthenticated Privilege Escalation via Restricted Shortcode Injection",
 "description": "The User Frontend plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.3.13. The restricted-shortcode check on frontend post submissions only covered rich-text fields and inspected text normalised differently from what was stored, allowing the protected [wpuf-registration] shortcode to slip through. This makes it possible for unauthenticated attackers, on forms that allow guest posting, and authenticated attackers with subscriber-level access and above, to embed the registration shortcode in a submission and use it to register a new account with a higher role such as Editor, provided user registration is enabled.",
 "plugin": {
  "slug": "wp-user-frontend",
  "name": "User Frontend",
  "full_name": "User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission",
  "wordpress_org": "https://wordpress.org/plugins/wp-user-frontend/",
  "advisories_url": "https://wpsec.com/vuln/plugin/wp-user-frontend/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/wp-user-frontend"
 },
 "type": "PRIV",
 "cwe": [
  "CWE-269"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 8.1,
  "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "severity": "High"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "4.3.14",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 4.3.14"
  ]
 },
 "introduced_in": null,
 "fixed_in": "4.3.14",
 "remediation": "Update to 4.3.14 or later.",
 "fix_released": "2026-10-28T08:57:29+00:00",
 "published": "2026-10-29T18:50:39+00:00",
 "updated": "2026-10-29T17:46:58.869686+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1945/",
  "https://plugins.svn.wordpress.org/wp-user-frontend/tags/4.3.14/",
  "https://wordpress.org/plugins/wp-user-frontend/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/wp-user-frontend",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-29"
 }
}