{
 "id": "WPSEC-2026-2121",
 "url": "https://wpsec.com/vuln/WPSEC-2026-2121/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-2121/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-2121/index.md",
 "title": "Pie Register <= 3.8.4.15 - Unauthenticated Missing Authorization to Plugin Settings Reset",
 "description": "The pie-register plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 3.8.4.15 due to a missing capability and nonce check on the settings reset routine, which ran whenever the 'piereg_default_settings' POST parameter was present. This makes it possible for unauthenticated attackers to reset all of the plugin's settings to their defaults, wiping the site's registration configuration.",
 "plugin": {
  "slug": "pie-register",
  "name": "Pie Register",
  "full_name": "Pie Register – User Registration, Profiles & Content Restriction",
  "wordpress_org": "https://wordpress.org/plugins/pie-register/",
  "advisories_url": "https://wpsec.com/vuln/plugin/pie-register/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/pie-register"
 },
 "type": "NO AUTHORISATION",
 "cwe": [
  "CWE-862"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 5.3,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "3.8.4.16",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 3.8.4.16"
  ]
 },
 "introduced_in": null,
 "fixed_in": "3.8.4.16",
 "remediation": "Update to 3.8.4.16 or later.",
 "fix_released": "2026-10-29T15:50:48+00:00",
 "published": "2026-10-30T15:52:38+00:00",
 "updated": "2026-10-30T09:24:51.834726+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-2121/",
  "https://plugins.svn.wordpress.org/pie-register/tags/3.8.4.16/",
  "https://wordpress.org/plugins/pie-register/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/pie-register",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-30"
 }
}