{
 "id": "WPSEC-2026-0778",
 "url": "https://wpsec.com/vuln/WPSEC-2026-0778/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-0778/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-0778/index.md",
 "title": "Advanced Form Integration <= 2.10.0 - Unauthenticated PHP Object Injection via Nex-Forms Submission Fields",
 "description": "The Advanced Form Integration plugin for WordPress is vulnerable to PHP Object Injection via Nex-Forms submission field values in all versions up to, and including, 2.10.0. This is due to the Nex-Forms trigger passing untrusted field values to maybe_unserialize(). The trigger runs on plugins_loaded for any POST request that contains a 'nex_forms_Id' parameter. It reads field values either straight from $_POST (when the form has no stored entry) or from a stored entry the request can choose, and any value that looks serialized is unserialized. This makes it possible for unauthenticated attackers to inject a PHP object when an integration is connected to a Nex-Forms form. The plugin itself contains no known POP chain. If a POP chain is present through another plugin or theme installed on the site, an attacker could delete arbitrary files, retrieve sensitive data, or execute code.",
 "plugin": {
  "slug": "advanced-form-integration",
  "name": "Advanced Form Integration",
  "full_name": "Advanced Form Integration — Connect Forms to 300+ Apps",
  "wordpress_org": "https://wordpress.org/plugins/advanced-form-integration/",
  "advisories_url": "https://wpsec.com/vuln/plugin/advanced-form-integration/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/advanced-form-integration"
 },
 "type": "OBJECT INJECTION",
 "cwe": [
  "CWE-502"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 8.1,
  "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "severity": "High"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "2.10.3",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 2.10.3"
  ]
 },
 "introduced_in": null,
 "fixed_in": "2.10.3",
 "remediation": "Update to 2.10.3 or later.",
 "fix_released": "2026-10-11T01:41:53+00:00",
 "published": "2026-10-12T02:40:37+00:00",
 "updated": "2026-10-11T11:41:35.359148+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-0778/",
  "https://plugins.svn.wordpress.org/advanced-form-integration/tags/2.10.3/",
  "https://wordpress.org/plugins/advanced-form-integration/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/advanced-form-integration",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-11"
 }
}