{
 "id": "WPSEC-2026-1135",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1135/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1135/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1135/index.md",
 "title": "Happierleads <= 1.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Client ID Setting",
 "description": "The Happierleads plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Client ID setting in all versions up to, and including, 1.0.1, due to the settings page being available to any user with the edit_posts capability and the stored Client ID being echoed into the input's value attribute without escaping (sanitize_text_field() does not encode quotes). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts that execute whenever a user, including an administrator, opens the plugin's settings page.",
 "plugin": {
  "slug": "happierleads",
  "name": "Happierleads",
  "full_name": "Happierleads – Identify your B2B website visitors even if they work remotely",
  "wordpress_org": "https://wordpress.org/plugins/happierleads/",
  "advisories_url": "https://wpsec.com/vuln/plugin/happierleads/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/happierleads"
 },
 "type": "XSS",
 "cwe": [
  "CWE-79"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 6.4,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "3.1.0",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 3.1.0"
  ]
 },
 "introduced_in": null,
 "fixed_in": "3.1.0",
 "remediation": "Update to 3.1.0 or later.",
 "fix_released": "2026-10-15T19:17:22+00:00",
 "published": "2026-10-16T19:42:39+00:00",
 "updated": "2026-10-16T09:50:50.008471+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1135/",
  "https://plugins.svn.wordpress.org/happierleads/tags/3.1.0/",
  "https://wordpress.org/plugins/happierleads/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/happierleads",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-16"
 }
}