FKIE_CVE-2026-3445

Vulnerability from fkie_nvd - Published: 2026-04-04 09:16 - Updated: 2026-07-21 19:10
Severity
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Summary
The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to unauthorized membership payment bypass in all versions up to, and including, 4.16.11. This is due to a missing ownership verification on the `change_plan_sub_id` parameter in the `process_checkout()` function. This makes it possible for authenticated attackers, with subscriber level access and above, to reference another user's active subscription during checkout to manipulate proration calculations, allowing them to obtain paid lifetime membership plans without payment via the `ppress_process_checkout` AJAX action.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3474509%40wp-user-avatar%2Ftrunk&old=3473639%40wp-user-avatar%2Ftrunk&sfp_email=&sfph_mail=#file3
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/ae1e198b-0c0d-47aa-8a56-ec4e790c8022?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile \u0026 Restrict Content \u2013 ProfilePress",
          "vendor": "properfraction",
          "versions": [
            {
              "lessThanOrEqual": "4.16.11",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile \u0026 Restrict Content \u2013 ProfilePress plugin for WordPress is vulnerable to unauthorized membership payment bypass in all versions up to, and including, 4.16.11. This is due to a missing ownership verification on the `change_plan_sub_id` parameter in the `process_checkout()` function. This makes it possible for authenticated attackers, with subscriber level access and above, to reference another user\u0027s active subscription during checkout to manipulate proration calculations, allowing them to obtain paid lifetime membership plans without payment via the `ppress_process_checkout` AJAX action."
    },
    {
      "lang": "es",
      "value": "El plugin Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile \u0026 Restrict Content - ProfilePress para WordPress es vulnerable a una elusi\u00f3n de pago de membres\u00eda no autorizada en todas las versiones hasta la 4.16.11, inclusive. Esto se debe a una verificaci\u00f3n de propiedad faltante en el par\u00e1metro \u0027change_plan_sub_id\u0027 en la funci\u00f3n \u0027process_checkout()\u0027. Esto hace posible que atacantes autenticados, con acceso de nivel de suscriptor y superior, hagan referencia a la suscripci\u00f3n activa de otro usuario durante el proceso de pago para manipular los c\u00e1lculos de prorrateo, lo que les permite obtener planes de membres\u00eda de por vida pagados sin pago a trav\u00e9s de la acci\u00f3n AJAX \u0027ppress_process_checkout\u0027."
    }
  ],
  "id": "CVE-2026-3445",
  "lastModified": "2026-07-21T19:10:00.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.2,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-3445",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-06T17:51:27.565573Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-04T09:16:20.330",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3474509%40wp-user-avatar%2Ftrunk\u0026old=3473639%40wp-user-avatar%2Ftrunk\u0026sfp_email=\u0026sfph_mail=#file3"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ae1e198b-0c0d-47aa-8a56-ec4e790c8022?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.