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CVE-2022-4539

Status: AnalyzedMedium (5.3)—

The Web Application Firewall plugin for WordPress is vulnerable to IP Address Spoofing in versions up to, and including, 2.1.2. This is due to insufficient restrictions on where the IP Address information is being retrieved for request logging and login restrictions. Attackers can supply the X-Forwarded-For header with with a different IP Address that will be logged and can be used to bypass settings that may have blocked out an IP address or country from logging in.

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)

Miniorange — WEB Application Firewall

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2022-4539",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-4539",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-03T14:35:31.628535Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@wordfence.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@wordfence.com",
      "affectedData": [
        {
          "vendor": "cyberlord92",
          "product": "Web Application Firewall – website security",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "semver",
              "lessThanOrEqual": "2.1.2"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:miniorange:web_application_firewall:*:*:*:*:*:*:*:*"
          ],
          "vendor": "miniorange",
          "product": "web_application_firewall",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "2.1.2"
            }
          ],
          "defaultStatus": "unknown"
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  ],
  "published": "2024-08-31T10:15:04.257",
  "references": [
    {
      "url": "https://plugins.trac.wordpress.org/changeset/3055548/web-application-firewall/trunk/helper/utility.php",
      "tags": [
        "Patch"
      ],
      "source": "security@wordfence.com"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0e99531c-8742-4f91-8525-65bb3cb06644?source=cve",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@wordfence.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-348"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Web Application Firewall plugin for WordPress is vulnerable to IP Address Spoofing in versions up to, and including, 2.1.2. This is due to insufficient restrictions on where the IP Address information is being retrieved for request logging and login restrictions. Attackers can supply the X-Forwarded-For header with with a different IP Address that will be logged and can be used to bypass settings that may have blocked out an IP address or country from logging in."
    },
    {
      "lang": "es",
      "value": "El complemento Web Application Firewall para WordPress es vulnerable a la suplantación de direcciones IP en versiones hasta la 2.1.2 incluida. Esto se debe a restricciones insuficientes sobre dónde se recupera la información de la dirección IP para el registro de solicitudes y las restricciones de inicio de sesión. Los atacantes pueden proporcionar el encabezado X-Forwarded-For con una dirección IP diferente que se registrará y se puede usar para eludir configuraciones que pueden haber bloqueado el inicio de sesión de una dirección IP o un país."
    }
  ],
  "lastModified": "2026-06-17T05:21:08.577",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:miniorange:web_application_firewall:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "673D0DED-8B1F-4967-8EEB-B8955B0FFD4C",
              "versionEndExcluding": "2.1.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@wordfence.com"
}