{
 "id": "WPSEC-2026-1820",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1820/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1820/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1820/index.md",
 "title": "Clean Login <= 1.20.1 - Authenticated (Contributor+) Missing Authorization to Plugin Page Settings Update via Shortcode",
 "description": "The Clean Login plugin for WordPress is vulnerable to unauthorized modification of data via the save_post handler that records the pages containing the plugin's shortcodes in all versions up to, and including, 1.20.1, due to a missing capability check in the get_pages_with_shortcodes() function. Saving any post, including an unpublished draft, that contains a Clean Login shortcode overwrites the site-wide login, edit, register, restore and change password page URLs and IDs. This makes it possible for authenticated attackers, with Contributor-level access and above, to point the plugin's links and redirects at a post they control, breaking the site's login, registration and password reset flows.",
 "plugin": {
  "slug": "clean-login",
  "name": "Clean Login",
  "full_name": "Clean Login",
  "wordpress_org": "https://wordpress.org/plugins/clean-login/",
  "advisories_url": "https://wpsec.com/vuln/plugin/clean-login/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/clean-login"
 },
 "type": "NO AUTHORISATION",
 "cwe": [
  "CWE-862"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 4.3,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "1.21",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 1.21"
  ]
 },
 "introduced_in": null,
 "fixed_in": "1.21",
 "remediation": "Update to 1.21 or later.",
 "fix_released": "2026-10-27T08:51:00+00:00",
 "published": "2026-10-28T09:46:14+00:00",
 "updated": "2026-10-27T13:05:43.788286+00:00",
 "also_published_as": {
  "source": "wordfence",
  "cve": [
   "CVE-2026-116610"
  ],
  "published": "2026-10-27T17:34:59+00:00"
 },
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1820/",
  "https://plugins.svn.wordpress.org/clean-login/tags/1.21/",
  "https://wordpress.org/plugins/clean-login/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/clean-login",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "None seen",
  "as_of": "2026-10-28"
 }
}