GHSA-7QRC-923R-C8CR

Vulnerability from github – Published: 2026-07-02 06:34 – Updated: 2026-07-02 06:34
VLAI
Details

The Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.9.27. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to overwrite plugin mail settings (from name and from email address), create audience lists, insert arbitrary contacts into those lists, create and overwrite newsletter broadcasts and post notifications, add workflows, and queue and dispatch mass email to arbitrary recipients.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-11592"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-02T06:16:13Z",
    "severity": "MODERATE"
  },
  "details": "The Email Subscribers \u0026 Newsletters \u2013 Email Marketing, Post Notifications \u0026 Newsletter Plugin for WordPress plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.9.27. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to overwrite plugin mail settings (from name and from email address), create audience lists, insert arbitrary contacts into those lists, create and overwrite newsletter broadcasts and post notifications, add workflows, and queue and dispatch mass email to arbitrary recipients.",
  "id": "GHSA-7qrc-923r-c8cr",
  "modified": "2026-07-02T06:34:05Z",
  "published": "2026-07-02T06:34:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11592"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.21/lite/admin/class-email-subscribers-admin.php#L216"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.21/lite/admin/class-ig-es-onboarding.php#L171"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.21/lite/includes/class-email-subscribers-activator.php#L66"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.21/lite/includes/classes/class-es-newsletters.php#L717"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.21/lite/includes/workflows/admin/class-es-workflow-admin-edit.php#L74"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.24/lite/admin/class-email-subscribers-admin.php#L216"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.24/lite/admin/class-ig-es-onboarding.php#L171"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.24/lite/includes/class-email-subscribers-activator.php#L66"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.24/lite/includes/classes/class-es-newsletters.php#L717"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.24/lite/includes/workflows/admin/class-es-workflow-admin-edit.php#L74"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3584584%40email-subscribers\u0026new=3584584%40email-subscribers\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a2e70691-4de9-4b12-babf-bebe267a780b?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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Sightings

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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.