{
 "id": "WPSEC-2026-1473",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1473/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1473/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1473/index.md",
 "title": "Paytium: Mollie payment forms & donations <= 5.0.5 - Unauthenticated PHP Object Injection via Payment Form Field Values",
 "description": "The Paytium: Mollie payment forms & donations plugin for WordPress is vulnerable to PHP Object Injection via the pt_form_field payment form parameters (checkbox fields and the pt-uploaded-files key) in all versions up to, and including, 5.0.5, due to deserialization of untrusted input with maybe_unserialize() without restricting allowed classes. This makes it possible for unauthenticated attackers to inject a PHP object. No known POP chain is present in the plugin itself. If a POP chain is present through another plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.",
 "plugin": {
  "slug": "paytium",
  "name": "Paytium: Mollie payment forms & donations",
  "full_name": "Paytium: Mollie payment forms & donations",
  "wordpress_org": "https://wordpress.org/plugins/paytium/",
  "advisories_url": "https://wpsec.com/vuln/plugin/paytium/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/paytium"
 },
 "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": "5.0.6",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 5.0.6"
  ]
 },
 "introduced_in": null,
 "fixed_in": "5.0.6",
 "remediation": "Update to 5.0.6 or later.",
 "fix_released": "2026-10-21T19:46:45+00:00",
 "published": "2026-10-22T19:48:10+00:00",
 "updated": "2026-10-22T09:33:05.997106+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1473/",
  "https://plugins.svn.wordpress.org/paytium/tags/5.0.6/",
  "https://wordpress.org/plugins/paytium/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/paytium",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-22"
 }
}