{
 "id": "WPSEC-2026-0902",
 "url": "https://wpsec.com/vuln/WPSEC-2026-0902/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-0902/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-0902/index.md",
 "title": "Elementor Website Builder <= 4.3.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Inline Post CSS",
 "description": "The Elementor Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via post CSS in all versions up to, and including, 4.3.4 due to insufficient neutralization of '</style' sequences when generated post CSS is printed inline inside a style tag. This makes it possible for authenticated attackers, with contributor-level access and above who can edit posts with Elementor, to close the style tag and inject arbitrary web scripts that execute whenever a user accesses the affected page. Exploitation requires that post CSS be printed inline, such as when Internal CSS Embedding is used.",
 "plugin": {
  "slug": "elementor",
  "name": "Elementor Website Builder",
  "full_name": "Elementor Website Builder – more than just a page builder",
  "wordpress_org": "https://wordpress.org/plugins/elementor/",
  "advisories_url": "https://wpsec.com/vuln/plugin/elementor/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/elementor"
 },
 "type": "XSS",
 "cwe": [
  "CWE-79"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 4.9,
  "vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "4.3.5",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 4.3.5"
  ]
 },
 "introduced_in": null,
 "fixed_in": "4.3.5",
 "remediation": "Update to 4.3.5 or later.",
 "fix_released": "2026-10-13T12:48:33+00:00",
 "published": "2026-10-14T12:52:26+00:00",
 "updated": "2026-10-14T12:12:59.952544+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-0902/",
  "https://plugins.svn.wordpress.org/elementor/tags/4.3.5/",
  "https://wordpress.org/plugins/elementor/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/elementor",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "High",
  "affected_versions": "High",
  "as_of": "2026-10-14"
 }
}