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CVE-2023-5417

Status: ModifiedMedium (4.3)—

The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_update_category function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the Funnelforms category for a given post ID.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Funnelforms — Funnelforms

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-5417",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@wordfence.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@wordfence.com",
      "affectedData": [
        {
          "vendor": "funnelforms",
          "product": "Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "semver",
              "lessThanOrEqual": "3.4"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2023-11-22T16:15:12.500",
  "references": [
    {
      "url": "https://plugins.trac.wordpress.org/changeset/2986938/funnelforms-free",
      "tags": [
        "Patch"
      ],
      "source": "security@wordfence.com"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/148794ea-3bc9-4084-bdb9-6ee63a781a39?source=cve",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@wordfence.com"
    },
    {
      "url": "https://plugins.trac.wordpress.org/changeset/2986938/funnelforms-free",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/148794ea-3bc9-4084-bdb9-6ee63a781a39?source=cve",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Funnelforms Free plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the fnsf_update_category function in versions up to, and including, 3.4. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the Funnelforms category for a given post ID."
    },
    {
      "lang": "es",
      "value": "El complemento Funnelforms Free para WordPress es vulnerable a modificaciones no autorizadas de datos debido a una falta de verificación de capacidad en la función fnsf_update_category en versiones hasta la 3.4 incluida. Esto hace posible que atacantes autenticados, con permisos de nivel de suscriptor y superiores, modifiquen la categoría Funnelforms para una ID de publicación determinada."
    }
  ],
  "lastModified": "2026-06-17T06:48:33.117",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:funnelforms:funnelforms:*:*:*:*:free:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2D3A36B2-28C7-476F-8C96-0DB16C86F516",
              "versionEndIncluding": "3.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@wordfence.com"
}