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CVE-2022-4939

Estado: ModificadaCrítica (9.8)—

THe WCFM Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including 2.10.0, due to a missing capability check on the wp_ajax_nopriv_wcfm_ajax_controller AJAX action that controls membership settings. This makes it possible for unauthenticated attackers to modify the membership registration form in a way that allows them to set the role for registration to that of any user including administrators. Once configured, the attacker can then register as an administrator.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Wclovers — Wcfm Membership

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-4939",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "ssvcData": {
          "id": "CVE-2022-4939",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-01-13T16:16:55.020704Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  "published": "2023-04-05T19:15:07.453",
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      "tags": [
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      "source": "security@wordfence.com"
    },
    {
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      "tags": [
        "Patch",
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      "source": "security@wordfence.com"
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      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "security@wordfence.com",
      "description": [
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          "lang": "en",
          "value": "CWE-862"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "THe WCFM Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including 2.10.0, due to a missing capability check on the wp_ajax_nopriv_wcfm_ajax_controller AJAX action that controls membership settings. This makes it possible for unauthenticated attackers to modify the membership registration form in a way that allows them to set the role for registration to that of any user including administrators. Once configured, the attacker can then register as an administrator."
    }
  ],
  "lastModified": "2026-06-17T05:22:21.407",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "versionEndExcluding": "2.10.1"
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          "operator": "OR"
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  ],
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}