GHSA-CPMR-M3WG-CF9C

Vulnerability from github – Published: 2026-07-01 06:31 – Updated: 2026-07-01 06:31
VLAI
Details

The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.7.7. 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 create arbitrary Media Library attachments by downloading remote images to the site's uploads directory via wp_upload_bits() and wp_insert_attachment(), bypassing the upload_files capability boundary.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-12902"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-01T05:16:17Z",
    "severity": "MODERATE"
  },
  "details": "The Kadence Blocks \u2014 Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.7.7. 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 create arbitrary Media Library attachments by downloading remote images to the site\u0027s uploads directory via wp_upload_bits() and wp_insert_attachment(), bypassing the upload_files capability boundary.",
  "id": "GHSA-cpmr-m3wg-cf9c",
  "modified": "2026-07-01T06:31:33Z",
  "published": "2026-07-01T06:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12902"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-prebuilt-library.php#L1078"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-prebuilt-library.php#L1223"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-prebuilt-library.php#L817"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-prebuilt-library.php#L916"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-blocks-prebuilt-library.php#L1078"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-blocks-prebuilt-library.php#L1223"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-blocks-prebuilt-library.php#L817"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.6/includes/class-kadence-blocks-prebuilt-library.php#L916"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3590217%40kadence-blocks\u0026new=3590217%40kadence-blocks\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7de2cb7a-dc3d-41f2-8faa-9e87f78531b5?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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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.


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