WPFunnels <= 3.12.8 - Authenticated (Funnel Manager+) Privilege Escalation via 'group_id' Path Parameter

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-15103",
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "dateUpdated": "2026-07-16T08:26:50.831Z",
    "dateReserved": "2026-07-08T16:58:02.760Z",
    "datePublished": "2026-07-16T08:26:50.831Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence",
        "dateUpdated": "2026-07-16T08:26:50.831Z"
      },
      "title": "WPFunnels <= 3.12.8 - Authenticated (Funnel Manager+) Privilege Escalation via 'group_id' Path Parameter",
      "descriptions": [
        {
          "lang": "en",
          "value": "The WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell plugin for WordPress is vulnerable to Privilege Escalation via arbitrary option update in all versions up to, and including, 3.12.8. This is due to the `update_settings()` REST callback failing to validate the `group_id` path parameter against an allowlist of permitted option names before passing it directly to `get_option()` and `update_option()`, allowing the built-in `wp_user_roles` option — which satisfies the route's loose `[\\w-]+` regex — to be targeted. This makes it possible for authenticated attackers with the `wpf_manage_funnels` capability and above to elevate their privileges to administrator by writing a crafted role definition containing arbitrary capabilities into the `wp_user_roles` option, thereby granting any WordPress role full site administrator access. The `wpf_manage_funnels` capability is typically assigned to the Funnel Manager custom role created by the plugin, meaning this role is the minimum required to exploit the vulnerability."
        }
      ],
      "affected": [
        {
          "vendor": "getwpfunnels",
          "product": "WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.12.8"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-269 Improper Privilege Management",
              "cweId": "CWE-269",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/76ad6d21-f277-496f-aa6b-f9d5cb8a3801?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.8/includes/core/rest-api/Controllers/class-settings-controller.php#L462"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.8/includes/core/rest-api/Controllers/class-settings-controller.php#L66"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.8/includes/core/rest-api/Controllers/class-settings-controller.php#L40"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.8/includes/utils/class-wpfnl-functions.php#L1216"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3607181%40wpfunnels&new=3607181%40wpfunnels"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "baseScore": 8.8,
            "baseSeverity": "HIGH"
          }
        }
      ],
      "timeline": [
        {
          "time": "2026-07-08T17:13:14.000Z",
          "lang": "en",
          "value": "Vendor Notified"
        },
        {
          "time": "2026-07-15T20:13:20.000Z",
          "lang": "en",
          "value": "Disclosed"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "PRISM",
          "type": "finder"
        }
      ]
    }
  }
}