Vulnerability-Lookup

GHSA-GXVP-W433-832F

Vulnerability from github – Published: 2026-02-18 09:31 – Updated: 2026-02-18 09:31

Details

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.

Severity ?

2.7 (Low)


                  
                    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-1831"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-18T08:16:14Z",
    "severity": "LOW"
  },
  "details": "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.",
  "id": "GHSA-gxvp-w433-832f",
  "modified": "2026-02-18T09:31:04Z",
  "published": "2026-02-18T09:31:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1831"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Ajax.php#L183"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Controllers/AddonController.php#L76"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/yaymail/trunk/src/Ajax.php#L183"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3460087%40yaymail\u0026new=3460087%40yaymail\u0026sfp_email=\u0026sfph_mail=#file11"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a568162a-5a2d-47ab-9dfe-2f2f5f324f0d?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-1831 (GCVE-0-2026-1831)

Vulnerability from cvelistv5 – Published: 2026-02-18 07:25 – Updated: 2026-02-18 12:52

Title

YayMail <= 4.3.2 - Missing Authorization to Authenticated (Shop Manager+) Plugin Installation and Activation

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.

Severity ?

2.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-862 - Missing Authorization

Assigner

Wordfence

References

URL

Tags

	https://www.wordfence.com/threat-intel/vulnerabil…
	https://plugins.trac.wordpress.org/browser/yaymai…
	https://plugins.trac.wordpress.org/browser/yaymai…
	https://plugins.trac.wordpress.org/browser/yaymai…
	https://plugins.trac.wordpress.org/changeset?sfp_…

Impacted products

	Vendor	Product	Version
	yaycommerce	YayMail – WooCommerce Email Customizer	Affected: * , ≤ 4.3.2 (semver)

Credits

whizzu

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1831",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-18T12:25:01.408432Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-18T12:52:05.436Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "YayMail \u2013 WooCommerce Email Customizer",
          "vendor": "yaycommerce",
          "versions": [
            {
              "lessThanOrEqual": "4.3.2",
              "status": "affected",
              "version": "*",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "whizzu"
        }
      ],
      "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 2.7,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-18T07:25:41.707Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a568162a-5a2d-47ab-9dfe-2f2f5f324f0d?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Ajax.php#L183"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/yaymail/trunk/src/Ajax.php#L183"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Controllers/AddonController.php#L76"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3460087%40yaymail\u0026new=3460087%40yaymail\u0026sfp_email=\u0026sfph_mail=#file11"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-05T17:24:28.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-02-17T18:55:15.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "YayMail \u003c= 4.3.2 - Missing Authorization to Authenticated (Shop Manager+) Plugin Installation and Activation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-1831",
    "datePublished": "2026-02-18T07:25:41.707Z",
    "dateReserved": "2026-02-03T14:41:20.453Z",
    "dateUpdated": "2026-02-18T12:52:05.436Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-GXVP-W433-832F

CVE-2026-1831 (GCVE-0-2026-1831)

Tags

Sightings

Nomenclature