FKIE_CVE-2026-1831

Vulnerability from fkie_nvd - Published: 2026-02-18 08:16 - Updated: 2026-06-17 10:16
Severity
2.7 (Low) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Summary
The YayMail - WooCommerce Email Customizer plugin for WordPress is vulnerable to unauthorized plugin installation and activation due to missing capability checks on the 'yaymail_install_yaysmtp' AJAX action and `/yaymail/v1/addons/activate` REST endpoint in all versions up to, and including, 4.3.2. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to install and activate the YaySMTP plugin.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Ajax.php#L183
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Controllers/AddonController.php#L76
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/yaymail/trunk/src/Ajax.php#L183
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3460087%40yaymail&new=3460087%40yaymail&sfp_email=&sfph_mail=#file11
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/a568162a-5a2d-47ab-9dfe-2f2f5f324f0d?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "YayMail \u2013 WooCommerce Email Customizer",
          "vendor": "yaycommerce",
          "versions": [
            {
              "lessThanOrEqual": "4.3.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The YayMail - WooCommerce Email Customizer plugin for WordPress is vulnerable to unauthorized plugin installation and activation due to missing capability checks on the \u0027yaymail_install_yaysmtp\u0027 AJAX action and `/yaymail/v1/addons/activate` REST endpoint in all versions up to, and including, 4.3.2. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to install and activate the YaySMTP plugin."
    },
    {
      "lang": "es",
      "value": "El plugin YayMail - WooCommerce Email Customizer para WordPress es vulnerable a la instalaci\u00f3n y activaci\u00f3n no autorizadas de plugins debido a la falta de comprobaciones de capacidad en la acci\u00f3n AJAX \u0027yaymail_install_yaysmtp\u0027 y el endpoint REST `/yaymail/v1/addons/activate` en todas las versiones hasta la 4.3.2, inclusive. Esto permite a atacantes autenticados, con acceso de nivel \u0027Shop Manager\u0027 o superior, instalar y activar el plugin YaySMTP."
    }
  ],
  "id": "CVE-2026-1831",
  "lastModified": "2026-06-17T10:16:35.077",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 2.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 1.4,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-1831",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-02-18T12:25:01.408432Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-18T08:16:14.873",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Ajax.php#L183"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Controllers/AddonController.php#L76"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/yaymail/trunk/src/Ajax.php#L183"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3460087%40yaymail\u0026new=3460087%40yaymail\u0026sfp_email=\u0026sfph_mail=#file11"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a568162a-5a2d-47ab-9dfe-2f2f5f324f0d?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



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Sightings

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