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CVE-2022-1756

Estado: ModificadaMedia (6.1)—

The Newsletter WordPress plugin before 7.4.5 does not sanitize and escape the $_SERVER['REQUEST_URI'] before echoing it back in admin pages. Although this uses addslashes, and most modern browsers automatically URLEncode requests, this is still vulnerable to Reflected XSS in older browsers such as Internet Explorer 9 or below.

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)

Thenewsletterplugin — Newsletter

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-1756",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "contact@wpscan.com",
      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "Newsletter – Send awesome emails from WordPress",
          "versions": [
            {
              "status": "affected",
              "version": "7.4.5",
              "lessThan": "7.4.5",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-06-13T13:15:11.987",
  "references": [
    {
      "url": "https://wpscan.com/vulnerability/6ad407fe-db2b-41fb-834b-dd8c4f62b072",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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      "source": "contact@wpscan.com"
    },
    {
      "url": "https://wpscan.com/vulnerability/6ad407fe-db2b-41fb-834b-dd8c4f62b072",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "contact@wpscan.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Newsletter WordPress plugin before 7.4.5 does not sanitize and escape the $_SERVER['REQUEST_URI'] before echoing it back in admin pages. Although this uses addslashes, and most modern browsers automatically URLEncode requests, this is still vulnerable to Reflected XSS in older browsers such as Internet Explorer 9 or below."
    },
    {
      "lang": "es",
      "value": "El plugin Newsletter de WordPress versiones anteriores a 7.4.5, no sanea y escapa el $_SERVER[\"REQUEST_URI\"] antes de devolverlo en las páginas de administración. Aunque esto usa addslashes, y la mayoría de los navegadores modernos automáticamente URLEncode peticiones, esto sigue siendo vulnerable a un ataque de tipo XSS Reflejado en los navegadores más antiguos como Internet Explorer 9 o anteriores"
    }
  ],
  "lastModified": "2026-06-17T04:23:03.320",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:thenewsletterplugin:newsletter:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9D88303E-C2A7-43EE-B669-13EDC1962A18",
              "versionEndExcluding": "7.4.5"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "contact@wpscan.com"
}