FKIE_CVE-2026-3090

Vulnerability from fkie_nvd - Published: 2026-03-18 16:16 - Updated: 2026-04-22 21:32
Severity ?
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Summary
The Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘event_type’ parameter in all versions up to, and including, 3.8.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability is only exploitable when the Post SMTP Pro plugin is also installed and its Reporting and Tracking extension is enabled.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/post-smtp/trunk/Postman/PostmanEmailLogs.php#L459
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset/3484515/
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/3f8cbbbb-2089-4966-8fd3-da4f76fb2517?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Post SMTP \u2013 Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP \u0026 Mobile App plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u2018event_type\u2019 parameter in all versions up to, and including, 3.8.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability is only exploitable when the Post SMTP Pro plugin is also installed and its Reporting and Tracking extension is enabled."
    },
    {
      "lang": "es",
      "value": "El plugin Post SMTP \u2013 Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP \u0026amp; Mobile App para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s del par\u00e1metro \u0027event_type\u0027 en todas las versiones hasta la 3.8.0, inclusive, debido a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes. Esto permite a atacantes no autenticados inyectar scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada. La vulnerabilidad solo es explotable cuando el plugin Post SMTP Pro tambi\u00e9n est\u00e1 instalado y su extensi\u00f3n de Informes y Seguimiento est\u00e1 habilitada."
    }
  ],
  "id": "CVE-2026-3090",
  "lastModified": "2026-04-22T21:32:08.360",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.7,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-18T16:16:28.560",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/post-smtp/trunk/Postman/PostmanEmailLogs.php#L459"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset/3484515/"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3f8cbbbb-2089-4966-8fd3-da4f76fb2517?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}


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