{
 "id": "WPSEC-2026-0968",
 "url": "https://wpsec.com/vuln/WPSEC-2026-0968/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-0968/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-0968/index.md",
 "title": "MDTF – Meta Data and Taxonomies Filter <= 1.3.9 - Authenticated (Contributor+) Missing Authorization to Filter Meta Key Rename",
 "description": "The MDTF – Meta Data and Taxonomies Filter plugin for WordPress is vulnerable to unauthorized modification of data via the 'mdf_change_meta_key' AJAX action in all versions up to, and including, 1.3.9, due to a missing capability check on the change_meta_key function, which is protected only by a nonce printed on the filter section edit screen. This makes it possible for authenticated attackers, with Contributor-level access and above, to rewrite the filter items of any filter section and rename a filter meta key in the data of every post on the site.",
 "plugin": {
  "slug": "wp-meta-data-filter-and-taxonomy-filter",
  "name": "MDTF – Meta Data and Taxonomies Filter",
  "full_name": "MDTF – Meta Data and Taxonomies Filter",
  "wordpress_org": "https://wordpress.org/plugins/wp-meta-data-filter-and-taxonomy-filter/",
  "advisories_url": "https://wpsec.com/vuln/plugin/wp-meta-data-filter-and-taxonomy-filter/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/wp-meta-data-filter-and-taxonomy-filter"
 },
 "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": "1.4.0",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 1.4.0"
  ]
 },
 "introduced_in": null,
 "fixed_in": "1.4.0",
 "remediation": "Update to 1.4.0 or later.",
 "fix_released": "2026-10-13T14:48:59+00:00",
 "published": "2026-10-14T20:43:57+00:00",
 "updated": "2026-10-14T19:51:23.131997+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-0968/",
  "https://plugins.svn.wordpress.org/wp-meta-data-filter-and-taxonomy-filter/tags/1.4.0/",
  "https://wordpress.org/plugins/wp-meta-data-filter-and-taxonomy-filter/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/wp-meta-data-filter-and-taxonomy-filter",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-14"
 }
}